Sailor with fish for man in nursery rhyme (4,5)
I believe the answer is:
jack sprat
'man in nursery rhyme' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'sailor with fish' is the wordplay.
'sailor' becomes 'jack' (informal term for a sailor).
'with' is a charade indicator (letters next to each other).
'fish' becomes 'sprat' (sprat is a kind of fish).
'jack'+'sprat'='JACK SPRAT'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for jack sprat that I've seen before include "One leaving fat" , "He ate only lean" , "His wife could eat no lean" , "fat-free dieter" , "He ate no fat" .)