Crazy person accompainies girl for spice (6)
I believe the answer is:
nutmeg
'for spice' is the definition.
(nutmeg is a kind of spice)
'crazy person accompainies girl' is the wordplay.
I cannot quite understand how this works, but
'crazy' could be 'nut' (I've seen this before) and 'nut' is located in the answer.
'girl' could be 'meg' and 'meg' is found in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for nutmeg that I've seen before include "Spicy seasoning - hard fruit for little Margaret?" , "Hard fruit and girl for a spice" , "Hard seed used as seasoning" , "Hard aromatic seed" , "Aromatic seed for grating" .)