Daily conveyance transports mum into crater (8,5)
I believe the answer is:
commuter train
'daily conveyance' is the definition.
'commuter train' can be an answer for 'conveyance' (commuter train is a kind of conveyance). I'm not sure about the 'daily' bit.
'transports mum into crater' is the wordplay.
'transports' indicates an anagram (I've seen 'transport' mean this (letters are transported elsewhere)).
'mum'+'into'+'crater'='mumintocrater'
'mumintocrater' with letters rearranged gives 'COMMUTER TRAIN'.
Can you help me to learn more?
(Other definitions for commuter train that I've seen before include "One ridden to work" , "Transport to and from work" .)