Crossword Genius

Pair of coppers employed for a trivial sum (8)

Ross

I believe the answer is:

twopence

'a trivial sum' is the definition.
(trivial sum of money)

'pair of coppers' is the wordplay.
'pair of' becomes 'two'.
'coppers' becomes 'pence' (I've seen this before).
'two'+'pence'='TWOPENCE'

'employed for' is the link.

(Other definitions for twopence that I've seen before include "Penny plain, - coloured" , "Fiftieth of a pound" , "Not much money" , "bit of history" , "Low-value coin" .)

I've seen this clue in The Guardian.
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