A figure so different from a prophet! (4)
I believe the answer is:
amos
'a prophet' is the definition.
(I've seen this before)
'a figure so different' is the wordplay.
'figure so different' becomes 'mos' (I can't justify this - if you can you should believe this answer much more).
'a'+'mos'='AMOS'
'from' acts as a link.
Can you help me to learn more?
(Other definitions for amos that I've seen before include "Biblical prophet and OT book" , "Biblical character" , "Hebrew prophet" , "man" , "30th OT book" .)