Figure more centrally as a singer (5)
I believe the answer is:
tenor
'a singer' is the definition.
(I know that tenor is a type of singer)
'figure more centrally' is the wordplay.
'figure' becomes 'ten' (ten is a number or figure).
'centrally' means to look at the middle letters.
The middle of 'more' is 'or'.
'ten'+'or'='TENOR'
'as' acts as a link.
(Other definitions for tenor that I've seen before include "theme" , "Purport" , "General meaning of an utterance" , "Higher male voice" , "range of 14 across [GIGLI]" .)