Christening baby after rear wiped, bun on it combed back first (9)
I believe the answer is:
baptismal
'rear wiped bun on it combed back first' is the definition.
I can't judge whether this defines the answer.
'christening baby after' is the wordplay.
'christening' becomes 'baptism' (I've seen this before).
'baby' becomes 'al' (I can't explain this - if you can you should believe this answer much more).
'after' says to put letters next to each other.
'baptism'+'al'='BAPTISMAL'
Can you help me to learn more?
(Other definitions for baptismal that I've seen before include "church service" , "Relating to the rite of admission to the Christian Church" .)