PM about to persist in being workshy, say (9)

I believe the answer is:

malingery

'being workshy say' is the definition.
(to malinger is to pretend to be ill)

'pm about to persist' is the wordplay.
'pm' becomes 'May' (Theresa May).
'about' is an insertion indicator.
'to persist' becomes 'linger' (lingering is a kind of persisting).
'may' going around 'linger' is 'MALINGERY'.

'in' is the link.

I've seen this clue in The Guardian.

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