Crossword Genius

Someone who tests old flame, a collier (8)

Ross

I believe the answer is:

examiner

'someone who tests' is the definition.

'old flame a collier' is the wordplay.
'old flame' becomes 'ex' (I've seen this in other clues).
'collier' becomes 'miner' (I've seen this before).
'ex'+'a'+'miner'='EXAMINER'

(Other definitions for examiner that I've seen before include "Meaner XI (anag)" , "One administering test" , "Tester of knowledge" , "judge" , "Who judges" .)

I've seen this clue in The Times.
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