Regale an inspiring figure (5)
I believe the answer is:
amuse
'regale' is the definition.
(I've seen this in another clue)
'an inspiring figure' is the wordplay.
'an' becomes 'a'.
'inspiring figure' becomes 'muse' (I can't explain this - if you can you should believe this answer much more).
'a'+'muse'='AMUSE'
Can you help me to learn more?
(Other definitions for amuse that I've seen before include "Enliven" , "Make (someone) laugh" , "Tickle" , "Divert or entertain mildly" , "Pleasantly occupy" .)