Dad's work provides more (4)

I believe the answer is:

adds

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

'dad's work' is the wordplay.
'work' indicates anagramming the letters.
'dads' with letters rearranged gives 'ADDS'.

Can you help me to learn more?

(Other definitions for adds that I've seen before include "Calculates the sum" , "Tots up" , "Appends; Totals" , "Contributes further" , "Puts (numbers) together" .)

I've seen this clue in the Sydney Morning Herald.

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