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Refusal
to
choose
teetotaller’s
way
out
(10)
Refusal to choose teetotaller’s way out (10)
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0
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0
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The whole clue is the definition (& lit or double definition).
How the clue works
The definition is Refusal to choose — think declining to vote — and teetotaller's way out is a second definition of exactly the same word, since abstaining is precisely how a non-drinker sidesteps the offer of a pint. No wordplay to untangle here; both halves are just pointing straight at the answer.