Possibly enrol someone who dislikes clubs? (5)
I believe the answer is:
loner
'someone who dislikes clubs?' is the definition.
'loner' can be an answer for 'someone' (loner is a kind of someone). I'm not certain of the rest of the definition.
'possibly enrol' is the wordplay.
'possibly' indicates anagramming the letters.
'enrol' with letters rearranged gives 'LONER'.
Can you help me to learn more?
(Other definitions for loner that I've seen before include "One shunning company" , "One shunning society" , "Solitary individual, prefers own company" , "Unsociable person" , "Non-conformist" .)