Lovatts Colossus No130 Giant Cryptic

Hi fellow puzzlers, I need to check some answers

18a Will your soul mate alter this conceit? = ego???????? (3)
20a Keen for volatile starlet to ale a comeback. (4) A?I?
31a Plugs newspapers source of revenue. (3) = ADS????????
32a Classic piece written like this. (3) = SIC?????????
49a To use a straw is not the right way to start pump. (3) = SIP??????
54a Bow of Noah's boat apparently. (3) = ARC ???????
56a Swooped then sped off to court. (3) = W?O
62a Lad seeks love in opposite directions. (3) = SON

Cheers
smithy