Left in strong wind on ship (7)
I believe the answer is:
galleon
'ship' is the definition.
(I know that galleon is a type of sail ship)
'left in strong wind on' is the wordplay.
'left' becomes 'L' (common abbreviation).
'in' is an insertion indicator.
'strong wind' becomes 'gale' (I've seen this before).
'l' placed into 'gale' is 'galle'.
'galle'+'on'='GALLEON'
(Other definitions for galleon that I've seen before include "All gone (anag.)" , "Old Spanish ship" , "Large Spanish sailing ship of yore" , "Old Spanish war-ship" , "Large old square-rigged sailing ship" .)