Change later (5)
I believe the answer is:
alter
'change later?' is the definition.
'alter' can be an answer for 'change' (synonyms). I am not sure about the 'later?' bit.
'change later?' is the wordplay.
'change' indicates anagramming the letters.
'later' anagrammed gives 'ALTER'.
Can you help me to learn more?
(Other definitions for alter that I've seen before include "shift" , "Adapt" , "convert" , "Amend" , "Alert to change" .)