Such work may seem too much for a while (8)
I believe the answer is:
overtime
'such work may seem' is the definition.
I can't judge whether this definition defines the answer.
'too much for a while' is the wordplay.
'too much' becomes 'over' (over can mean to too great an extent).
'for' is a charade indicator (letters next to each other).
'a while' becomes 'time' (I've seen this before).
'over'+'time'='OVERTIME'
Can you help me to learn more?
(Other definitions for overtime that I've seen before include "Hours worked in excess of usual" , "Extra hours (at work)" , "Pay for extra work" , "opportunity for supplementing income" , "Work in excess of fixed period" .)