Rob's beaten, having broken sternum (10)

I believe the answer is:

breastbone

'sternum' is the definition.
(synonyms)

'rob's beaten having broken' is the wordplay.
'having broken' indicates an anagram.
'robs'+'beaten'='robsbeaten'
'robsbeaten' anagrammed gives 'BREASTBONE'.

(Other definitions for breastbone that I've seen before include "Rib neighbour" , "Sternum" .)

I've seen this clue in The Daily Express.

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