2: Going back in where GI trapped predator (5)
5: Small Italian instrument (7)
9: Sums are written up for scholar (7)
10: Wine from Greece brought back in canisters (7)
11: Untrustworthy hedonists cavorting (9)
12: Sound of river crossing (3)
13: Let not passion sway philosophers (3-10)
17: Princesses's attendant, yawning, laid it out (4-2-7)
21: One may be transported by this kiss, it's said (3)
23: Endless greeting after wine and cheese (4-5)
24: Whip in swell company (7)
25: Guess I'm gettin' old and wise at last (7)
26: Twice take heart over raven writers so-called ground parrots (7)
27: De Bergerac hugged bird on return (5)