Crossword Genius

Sound setter makes with sympathetic exclamation (4)

Ross

I believe the answer is:

woof

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'sound setter' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'with sympathetic exclamation' is the wordplay.
'with' becomes 'w' (abbreviation).
'sympathetic exclamation' becomes 'oof' (I've seen this in another clue. I am not sure about the 'sympathetic' bit.).
'w'+'oof'='WOOF'

'makes' acts as a link.

Can you help me to learn more?

(Other definitions for woof that I've seen before include "Bark, yap" , "Dog's noise" , "Dog sound" , "As dog goes" , "Yarn" .)

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