1: Algerian city has grand musical instrument (5)
3: Its difficult to include the overhead in the cache (5)
6: And give a little toot! (3)
8: Prosecutor entering motion following air conditioning company manager's initial settlement (13)
10: Drive carefully and live (5)
11: Daytime TV show one of the Marx brothers brought back (5)
14: Old Greek circle followed by Northern military group (7)
15: Silver cap for crewless name (7)
17: Senior citizen losing 500 toddlers at sea (7)
18: Rhyme in Old English to run the show (7).
19: Totally lacking a lofty plaything (3)
23: Runs in place without a top--without a top OR bottom (5)
24: Ned Lunig, thrown inside, openly seen to be crapulous (13)
25: Mr Stewart on the staff (3)
26: English lead getting into the pants of guys (5)
27: Warning sound in audio of Jodie Foster movie (5)