Crossword Genius

Business bill cutting cost (8)

Ross

I believe the answer is:

practice

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

'business bill cutting cost' is the definition.
I can't judge whether this definition defines the answer.

'business bill cutting cost' is the wordplay.
'business bill' becomes 'act' (I've seen this in other clues. I am not sure about the 'business' bit.).
'cutting' is an insertion indicator (some letters cut their way into a word).
'cost' becomes 'price' (price is a kind of cost).
'act' going into 'price' is 'PRACTICE'.

Can you help me to learn more?

(Other definitions for practice that I've seen before include "Learn by repetition" , "Professional business of doctor or lawyer" , "It makes perfect, 'tis said" , "It's said to make perfect" , "Exercise; professional business" .)

I've seen this clue in The Sun.
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