1: Fastened and collapsed. (7)
2: Supplied guns in gendarme division (5)
3: Vet theatre opening 8-down (3)
4: Good Republican source of life-giving system for short-handed office workers (5)
5: Inflexible yet adjusted (3)
6: Bring Father back to hang buckets on maples again (5)
7: Writer producing page behind a king (9)
8: Venture to comment, 'War God stands in light' (7)
12: Prohibit couple from erotically wearing less clothing (5)
13: It may be used in candy or brought back in taxi (5)
15: Young boy capturing us with snapshot, initially incurring mistrust (9)
16: Starts to prepare every kind of European tea (5)
17: Reportedly, looked at sea serpent as exemplar (5)
18: Be amusing for Matilda (7)
20: 'Old car stalls,' discloses again? (7)
22: Twice French mounted plain bovines (5)
23: Sensible and articulate (5)
24: Updike hero taking time off to see teacher (5)
26: See, you are a cad. (3)
27: Polygraph unexpectedly traps vandal (3)