1: Britannia - she never has blanched (5)
4: Tool placed under sack as a safety precaution (4,5)
8: Sounds like Brazilian soccer player may make a good fisher (7)
9: Something cold in Candice Bergen's makeup (7)
10: Eat away at verse after initial hesitation (5)
11: Pauses awkwardly after error but steadies nerves (5,2)
14: Harsh cry from Cru: 'Late. Aw nuts!' (9)
15: Dizzy Ben is a playwright (5)
16: Airborne without a trace of fear, reclining in plane (5)
18: This is truncated, or the end's off (9)
20: University with unconventional stance about unconventional person (7)
21: Delete Times editorial first (5)
23: Thankless person from Tangier (7)
26: Grandma takes Mr. Thalberg to the 'State of Oblivion' (7)
27: Two detectives produce a cosmetic (3,6)
28: Belated top-and-tailing to gladden one's heart (5)