Recall jogger having a rest (9)
I believe the answer is:
remainder
'rest' is the definition.
(I know that rest can be written as remainder)
'recall jogger having a' is the wordplay.
I cannot quite understand how this works, but
'a' is within the answer.
'recall' could be 'remind' (synonyms) and 'remind' is present in the leftover letters.
The remaining letters 'er' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for remainder that I've seen before include "Leftovers" , "Left-over" , "book going cheap" , "that's left" , "Sell off book stock cheaply" .)