Raises idiot healthy eater? (4,5)
I believe the answer is:
jack sprat
'healthy eater?' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'raises idiot' is the wordplay.
'raises' becomes 'jacks' (jacking is a kind of raising).
'idiot' becomes 'prat' (both can mean a stupid person).
'jacks'+'prat'='JACK SPRAT'
Can you help me to learn more?
(Other definitions for jack sprat that I've seen before include "He ate only lean" , "fat-free dieter" , "His wife could eat no lean" , "Nursery-rhyme character" , "he stuck to a fat-free diet" .)