Is he simply saintly? (5)
I believe the answer is:
simon
'is he simply saintly?' is the definition.
The definition suggests a singular noun which matches the answer.
'he simply saintly?' is the wordplay.
'he' becomes 'Sim'.
'simply saintly?' becomes 'on' (I can't explain this - if you can you should believe this answer much more).
'sim'+'on'='SIMON'
Can you help me to learn more?
(Other definitions for simon that I've seen before include "Harris and Coveney" , "disciple" , "Apostle Peter's other name" , "See 1" , "Bolivar, de Montfort, Callow or Cowell?" .)