A bit like a mankini, perhaps (3-5)
I believe the answer is:
one-piece
'a mankini perhaps' is the definition.
I can't tell whether this definition defines the answer.
'a bit' is the wordplay.
'a' becomes 'one'.
'bit' becomes 'piece' (synonyms).
'one'+'piece'='ONE-PIECE'
'like' is the link.
Can you help me to learn more?
(Other definitions for one-piece that I've seen before include "(E.g. swimming costume) not as separates" , "Made as a single unit" , "Made as a single item" , "Bathing-costume" .)