Change in this cabinet: Heath upset (6-4)

I believe the answer is:

locker-room

'change in this' is the definition.
(place to change clothing)

'cabinet heath upset' is the wordplay.
'cabinet' becomes 'locker' ('locker' can be a synonym of 'cabinet').
'heath' becomes 'moor' (I've seen this before).
'upset' says the letters should be written backwards.
'moor' back-to-front is 'room'.
'locker'+'room'='LOCKER-ROOM'

I've seen this clue in The Guardian.

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