12a) ....see,in trinidad , andrew forging valuable document ?
( two words )
D???D?N???R?A?T
9a) ..captains beef about power given to me ..( 7 )
S?I?M?N
Could beef be "shin" , "p" for power, and "me" ......... putting them together gives SHIPMEN which could be an answer for "captains". Sorry, I haven't started my Bare Bones yet, but this came to mind. Can't help on the other yet. Looks like an anagram somewhere.
think ive finished .....but not happy with 20a)
to get ship into rivers the reverse of cunning
S?Y?E?S
probably shyness / slyness
not sure which or why ......?
assume ship to be S.S ....but after that ...lost