Crossword Genius

One card or three (4)

Ross

I believe the answer is:

trey

This clue is a double definition.

'one card' is the first definition.
(trey is a kind of card)

'three' is the second definition.
(synonyms)

'or' acts as a link.

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

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app