Sailing ship sails into embargo that's beside the point (10)
I believe the answer is:
brigantine
'sailing ship' is the definition.
(brigantine is a kind of sailing ship)
'sails into embargo that's beside the point' is the wordplay.
'sails' becomes 'rig' (I've seen this in other clues).
'into' indicates putting letters inside.
'embargo' becomes 'ban' (I've seen this in another clue).
'that's beside the point' becomes 'tine' (I can't justify this - if you can you should believe this answer much more).
'rig' going inside 'ban' is 'brigan'.
'brigan'+'tine'='BRIGANTINE'
Can you help me to learn more?
(Other definitions for brigantine that I've seen before include "vessel" , "Boat" , "Two-masted sailing ship" .)