Prohibited group of Nicaraguan rebels? (10)
I believe the answer is:
contraband
'prohibited group of nicaraguan rebels?' is the definition.
'contraband' can be an answer for 'prohibited' (thesaurus). I am not sure about the 'group of nicaraguan rebels?' bit.
'prohibited group' is the wordplay.
'prohibited' becomes 'contra' (I can't justify this - if you can you should give a lot more credence to this answer).
'group' becomes 'band' (I've seen this before).
'contra'+'band'='CONTRABAND'
Can you help me to learn more?
(Other definitions for contraband that I've seen before include "Illegally brought in" , "illegal trade" , "Smuggled goods" , "loot" .)