Vulgarity that may render everything bland (13)

I believe the answer is:

tastelessness

This clue is a double definition.

'vulgarity' is the first definition.
(bad taste)

'that may render everything bland' is the second definition.
(inability to taste anything)

(Other definitions for tastelessness that I've seen before include "Lack of aesthetic judgement" , "Tacky quality" , "Lack of flavour" .)

I've seen this clue in The Times.

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