A liberal enthusiast is everywhere (7)

I believe the answer is:

allover

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'is everywhere' is the definition.
I can't tell whether this defines the answer.

'a liberal enthusiast' is the wordplay.
'liberal' becomes 'l' (abbreviation).
'enthusiast' becomes 'lover' (someone who loves something).
'a'+'l'+'lover'='ALLOVER'

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(Another definition for allover that I've seen is " sewn up".)

I've seen this clue in The Daily Express.

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