Outside right, cunningly, apes the fellow top wingers (8)
I believe the answer is:
seraphim
'top wingers' is the definition.
(highest order of angels)
'outside right cunningly apes the fellow' is the wordplay.
'outside' means one lot of letters goes inside another.
'right' becomes 'r' (common abbreviation).
'cunningly' indicates anagramming the letters.
'the fellow' becomes 'him'.
'apes' anagrammed gives 'seap'.
'r' put inside 'seap' is 'serap'.
'serap'+'him'='SERAPHIM'
(Other definitions for seraphim that I've seen before include "Angelic types" , "Angelic beings" , "High-ranking angels" , "Highest order of angels" , "High spirits" .)