Dad's excited tots (4)

I believe the answer is:

adds

'tots' is the definition.
('add' can be a synonym of 'tot')

'dad's excited' is the wordplay.
'excited' is an anagram indicator.
'dads' anagrammed gives 'ADDS'.

(Other definitions for adds that I've seen before include "Does summer job" , "Reckons" , "Tots up" , "Counts" , "Calculates the sum" .)

I've seen this clue in The Telegraph.

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