Crossword Genius

In forest Reynard spotted three (4)

Ross

I believe the answer is:

trey

'three' is the definition.
('trey' can be a synonym of 'three')

'in forest reynard spotted' is the wordplay.
'in' says the answer is hidden in the clue.
'TREY' is hidden in the letters of 'forest reynard spotted'.

(Another definition for trey that I've seen is " Three in cards".)

I've seen this clue in The Telegraph.
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