Brother fool CIA's movement to produce cabbages? (9)
I believe the answer is:
brassicas
'produce cabbages?' is the definition.
The answer and definition can be both plants as well as being plural nouns.
Perhaps you can see an association between them that I can't see?
'brother fool cia's movement' is the wordplay.
'brother' becomes 'br' (abbreviation in titles of monks).
'fool' becomes 'ass' (both can mean a stupid person).
'movement' indicates an anagram (letters move around).
'cias' is an anagram of 'icas'.
'br'+'ass'+'icas'='BRASSICAS'
'to' is the link.
Can you help me to learn more?
(Other definitions for brassicas that I've seen before include "Plants" , "Swedes, for example" .)