Take over steamship in the wake of crew (7)
I believe the answer is:
possess
'take' is the definition.
(thesaurus)
'over steamship in the wake of crew' is the wordplay.
'over' says to put letters next to each other (in a down clue, some letters go over others).
'steamship in the wake of' becomes 'ss' (I can't justify this - if you can you should believe this answer much more).
'crew' becomes 'posse' (I've seen this in another clue).
'ss' after 'posse' is 'POSSESS'.
Can you help me to learn more?
(Other definitions for possess that I've seen before include "Consume" , "Have as one's own" , "Have and hold" , "Own, keep" , "Have - control" .)