Mark's in this carriage (4)

I believe the answer is:

scar

'mark's' is the definition.
(synonyms)

'in this carriage' is the wordplay.
'in' indicates a hidden word.
'SCAR' is hidden in the letters of 'this carriage'.

(Other definitions for scar that I've seen before include "Evidence of an old wound" , "Craggy rock formation" , "Remains of a wound" , "Stain" , "Limestone cliff or outcrop" .)

I've seen this clue in The Sun.

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