Amazing soul encapsulating actor Gene (11)
I believe the answer is:
bewildering
'amazing' is the definition.
('bewilder' can be a synonym of 'amaze')
'soul encapsulating actor gene' is the wordplay.
'soul' becomes 'being' (both can mean a person).
'encapsulating' is an insertion indicator (I've seen this in other clues).
'actor gene' becomes 'Wilder' (US actor Gene Wilder, 1933-2016).
'being' placed around 'wilder' is 'BEWILDERING'.
(Other definitions for bewildering that I've seen before include "complex" , "Amazing" , "Baffling" , "Perplexing" , "enigmatic" .)