Accountants love a supplier of chocolate (5)

I believe the answer is:

cacao

I'm a little stuck... Click here to teach me more about this clue!

'a supplier of chocolate' is the definition.
I know that 'chocolate' relates to this answer.

'accountants love' is the wordplay.
'accountants' becomes 'caca'.
'love' becomes 'o' (love means zero in tennis).
'caca'+'o'='CACAO'

Can you help me to learn more?

(Other definitions for cacao that I've seen before include "Tree with seeds used to make chocolate" , "Tree from which chocolate is made" , "Tree supplying chocolate" , "Tree for cocoa bean" , "Bean providing chocolate" .)

I've seen this clue in The Globe and Mail.

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