Prince from West Africa wearing collar (5)
I believe the answer is:
nawab
'prince' is the definition.
(nawab can mean a Muslim prince or nobleman)
'west africa wearing collar' is the wordplay.
'west africa' becomes 'WA' (abbreviation).
'wearing' means one lot of letters goes inside another.
'collar' becomes 'nab' (both can mean to catch a person).
'wa' going inside 'nab' is 'NAWAB'.
'from' is the link.
(Other definitions for nawab that I've seen before include "Muslim prince in India" , "Mogul official" , "Indian governor" , "Indian ruler" , "Muslim nobleman" .)