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)