Crossword Genius

Circuit put on copier – it keeps the end clean (3,5)

Ross

I believe the answer is:

loo paper

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'it keeps the end clean' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'circuit put on copier' is the wordplay.
'circuit' becomes 'loop' (synonyms).
'put on' says to put letters next to each other.
'copier' becomes 'aper' (ape can mean to copy or imitate).
'loop'+'aper'='LOO PAPER'

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