Crossword Genius

Truth about groove (3)

Ross

I believe the answer is:

rut

'groove' is the definition.
(I know that groove can be written as rut)

'truth about' is the wordplay.
'about' indicates a hidden word (the clue goes around or about the answer).
'RUT' can be found hidden inside 'truth'.

(Other definitions for rut that I've seen before include "Deep groove as in a lane" , "Groove worn by wheels" , "Well-worn track" , "A deep track - get out of it" , "Deep worn track, a bad place to be" .)

I've seen this clue in The Mirror.
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