Last to get operation seen on the French ship without a shirt? (7)
I believe the answer is:
topless
'without a shirt?' is the definition.
('shirt' can be 'top' (I've seen this in another clue) so maybe 'without a shirt' can be ''topless')
'last to get operation seen on the french ship' is the wordplay.
'last to' indicates one should take the final letters.
'operation' becomes 'op'.
'seen on' says to put letters next to each other.
'the french' becomes 'le' ('the' in French).
'ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
The last letter of 'get' is 't'.
't'+'op'+'le'+'ss'='TOPLESS'
(Other definitions for topless that I've seen before include "Wearing no clothing above the waist" , "Half naked" , "Leaving the breasts uncovered" , "Half-naked" , "Without a shirt, vest or bra?" .)