12 across
Less
often
confused
with
it
when
counting
(5)
Less often confused with it when counting (5)
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The whole clue is the definition (& lit or double definition).
How the clue works
The whole clue is a cryptic definition of Less often confused with it when counting, playing on the well-known grammatical mix-up between 'less' and 'fewer'. Since 'fewer' is the correct word to use with countable items, it is the word that 'less' is so often confused with when counting.