1: Certain mollusk back in Hokkaido ports again (9)
6: Icy turning, for example, on top (5)
9: Dexterity is an insult, so we hear (7)
10: Bill is after Chuck to discipline (7)
11: True-blue pub changes at heart (5)
12: Sally was ready to embrace East German (7)
13: Don't encourage satellite pace to slacken. (11)
16: Height is equal to three-fifths of the first one (3)
17: Carries most of sea-bird back. (3)
18: 15-acrosss toilet pot? Rubbish! (5,6)
20: Apprentice relinquishes heart to temptress (7)
23: Sinister, in bloody honour. (5)
25: Charge one piece of mandarin fruit (7)
26: Poorer and more squalid, heading from south to north (7)
28: A prison is in commotion (5)
29: See, sir; bar is operating at the beer eatery (9)