Confirmation perhaps dispatched, packaging ace stuff (9)
I believe the answer is:
sacrament
'confirmation perhaps' is the definition.
(confirmation is a kind of sacrament)
'dispatched packaging ace stuff' is the wordplay.
I cannot really understand how this works, but
'ace' could be 'a' (abbreviation) and 'a' is found in the answer.
'stuff' could be 'cram' (synonyms) and 'cram' is found within the answer.
'dispatched' could be 'sent' (I've seen this in another clue) and 'sent' is found in the leftover letters.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for sacrament that I've seen before include "Religious ritual" , "Holy ritual" , "baptism, say" , "Eucharist, for example" , "Symbol of something spiritual" .)