The pain of a guerilla leader? (4)
I believe the answer is:
ache
'the pain' is the definition.
(ache is a kind of pain)
'a guerilla leader?' is the wordplay.
'guerilla leader?' becomes 'che' (I am not sure about this - if you are sure you should believe this answer much more).
'a'+'che'='ACHE'
'of' is the link.
Can you help me to learn more?
(Other definitions for ache that I've seen before include "Continuous hurt" , "burn" , "Hanker" , "yearning" , "Suffer dull pain" .)