Again, covered heel protrudes improperly (13)

I believe the answer is:

reupholstered

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'again covered' is the definition.
The definition suggests a past participle verb which matches the answer.

'heel protrudes improperly' is the wordplay.
'improperly' indicates anagramming the letters (I've seen this in other clues).
'heel'+'protrudes'='heelprotrudes'
'heelprotrudes' anagrammed gives 'REUPHOLSTERED'.

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I've seen this clue in The Guardian.

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