Across:
1 Shocked (AGHAST) by a (A-) middleman (middle ‘man’ = a) replacing Oscar (o) in spirit (‘ghost’ – replace ‘o’ with ‘a’ = -GHAST) (AGHAST),
4 For example (e.g. = EG-), weight (weight = -G WHITE) training (= anagram indicator) (EGG WHITE) protects that yoke by the sound of it? (= homophone indicator) (“yoke” = “yolk” is protected by EGG WHITE),
9 Architect releases her (‘architect’ releases ‘her’ = acitct = TACTIC) plan (TACTIC),
10 Giving out (BERATING) starters of baked enchiladas (starters of ‘baked enchiladas’ = BE-) to a number of stars, for example (a number of stars = -RATING) (BERATING),
12 Analysis (BREAKDOWN) of short holiday (BREAK-) in Ulster (-DOWN) (BREAKDOWN),
13 Part of occupation (part of ‘occupation’ = PATIO) for those getting a grilling? (PATIO / barbecue),
14 An ulterior motive (HIDDEN AGENDA) for what hide-and-go-seek champion might have up his sleeve (HIDDEN AGENDA),
18 One (-I-) father (-POP) working in stable (stable LAD-) consumed by local money (lolly = LOLL- -Y) (LOLLIPOP LADY) has a job looking after schoolchildren crossing the line (LOLLIPOP LADY),
21 Love (ADORE) what’s found in bread? Oregano! (what’s found in ‘bread oregano’ = ad ore = ADORE),
22 Ignore ref (ignore ref = FOREIGNER) going crazy (= anagram indicator) with one from a national team that’s not ours (FOREIGNER),
24 Relates to deep-rooted reaction to (VISCERAL) nasty (= anagram indicator), vile scar (vile scar = VISCERAL),
25 Had a lot to say in Rome (CICERO) to pal getting out of police car (‘pal’ getting out of ‘police car’ = oicecr = CICERO),
26 View (SPECTATE) tiny (speck) clip (k) (‘speck’ without ‘k’ = SPEC-) from museum (-TATE) (SPECTATE),
27 Some contrast – a Sisyphean (some ‘contrast a Sisyphean’ = st a Sis = STASIS) period of inactivity (STASIS).
Down:
1 Novel (= anagram indicator) about (about = AUTOB-) a household name opens (‘a household name’ opens = -AHN) (AUTOBAHN) The Road – the German translation (AUTOBAHN),
2 Had a nice (had a nice = HACIENDA) wild (= anagram indicator) Mexican ranch (HACIENDA),
3 Dodge (SHIRK) beer from Berkshire (‘beer’ from ‘Berkshire’ = kshir = SHIRK),
5 Olive (GREEN) and father (parish priest = -PP-) among the titled few (PE-ERS) (GREEN PEPPERS) with the colourful Bells (colourful bell peppers = GREEN PEPPERS),
6 Got rid of the cold (WRAPPED UP) in snug (WRAPPED UP),
7 23 down (‘idiot’= IDIOT-) is top secret (top ‘secret’ = -S) (IDIOTS) to foolish people (IDIOTS),
8 Get going without it (“get going” without “it” = gegong = EGGNOG) for Christmas drink (EGGNOG),
11 Adjustable (MOVEABLE) loud music (forte = F-) from One Direction (-EAST) (MOVEABLE FEAST) for Easter, for example (MOVABLE FEAST),
15 It’s for the beloved runners (ELOPEMENT) getting away for the match (ELOPEMENT),
16 They’re responsible for the sketches (PAINTERS) of new (= anagram indicator) pantries (pantries = PAINTERS),
17 Cunning, youthful protester starts (‘cunning, youthful protester’ starts = CYP-) disturbances (-RIOTS) (CYPRIOTS) with Mediterranean islanders (CYPRIOTS),
19 Line (-L-) in dark passages (caves = CA-VES) (CALVES) stretched by one of those on the run (CALVES),
20 Moment (MO-) old republic (USSR) drops resistance (r) (‘USSR’ without ‘r’ = -USS-) to Spain (-E) (MOUSSE) is sweet (MOUSSE),
23 Dopey is one (IDIOT) gnome leaving in good time (‘gnome’ leaving ‘in good time’ = iodti = IDIOT).