Make it no longer a government concern to force capturing one on a large vessel (9)
I believe the answer is:
privatise
'make it no longer a government concern' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.
'force capturing one on a large vessel' is the wordplay.
'force' becomes 'prise' (I've seen this in other clues).
'capturing' is an insertion indicator.
'one' becomes 'I' (Roman numeral).
'on' says to put letters next to each other.
'a large vessel' becomes 'vat' (I've seen this before).
'i'+'vat'='ivat'
'prise' enclosing 'ivat' is 'PRIVATISE'.
'to' is the link.
Can you help me to learn more?
(Another definition for privatise that I've seen is " remove from state control".)