A Netflix broadcast covering old cosmetic (9)

I believe the answer is:

exfoliant

'cosmetic' is the definition.
(I've seen this before)

'a netflix broadcast covering old' is the wordplay.
'broadcast' indicates an anagram (letters scattered or cast around).
'covering' indicates putting letters inside.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'a'+'netflix'='anetflix'
'anetflix' with letters rearranged gives 'exfliant'.
'exfliant' going around 'o' is 'EXFOLIANT'.

(Another definition for exfoliant that I've seen is " Cosmetic".)

I've seen this clue in The Independent.

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