Tory Party first to mandate Anti-Labour measure (6)

I believe the answer is:

condom

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'anti-labour measure' is the definition.
I can't tell whether this defines the answer.

'tory party first to mandate' is the wordplay.
'tory' becomes 'con' (abbreviation for conservative).
'party' becomes 'do' (do can informally mean a party).
'first to' says to take the initial letters.
The initial letter of 'mandate' is 'm'.
'con'+'do'+'m'='CONDOM'

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