Help with washing up during childish rage? (7)
I believe the answer is:
dishrag
'help with washing up' is the definition.
(a dishrag might be used when washing up)
'during childish rage?' is the wordplay.
'during' indicates the answer is hidden within the clue.
'DISHRAG' is hidden in the letters of 'childish rage'.
(Other definitions for dishrag that I've seen before include "Cleaner" , "Wiper in the kitchen" , "Washing-up cloth" , "used to clean in kitchen" , "American tea towel" .)