Count makes out, by the sound of it (6)

I believe the answer is:

census

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'count' is the definition.
(census is a kind of count)

I don't understand the remainder of the clue.

(Other definitions for census that I've seen before include "People count" , "Periodic count as of population" , "Periodic counting of the population" , "Head-count" , "Official body count?" .)

I've seen this clue in The Daily Mail.

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