Metal used in synchromesh (6)

I believe the answer is:

chrome

'metal' is the definition.
(chrome is a kind of metal)

'in synchromesh' is the wordplay.
'in' indicates the answer is hidden within the clue.
'CHROME' can be found hidden inside 'synchromesh'.

'used' is the link.

(Other definitions for chrome that I've seen before include "Metallic element" , "Protective finish on motor vehicle fittings" , "used to make plate" , "Chinese callisthenic system" , "Silvery metal surface to prevent tarnishing" .)

I've seen this clue in The Telegraph.

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