1a Know-how combined with 55 parts power (3,5). I have ??M?A?V?
24a Spin bowler welcoming good to moderate effort (5,6)
20a Vancouver's partner - where slightly reduced sporting list is included? (8)
Thanks for any help
1a. could be cum-savvy (= 'know-how') ... 'cum' (i.e. 'combined with') + 'vv'='55' inside (i.e. 'parts') 'say' (as in 'to have a say'/'to have power').