Price reduction newly introduced as benefit, finally (5,8)

I believe the answer is:

trade discount

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'price reduction' is the definition.
'trade discount' can be an answer for 'reduction' (thesaurus). I'm not certain of the 'price' bit.

'newly introduced as benefit finally' is the wordplay.
'newly' indicates an anagram.
'finally' indicates one should take the final letters.
The last letter of 'benefit' is 't'.
'introduced'+'as'='introducedas'
'introducedas' anagrammed gives 'tradediscoun'.
'tradediscoun'+'t'='TRADE DISCOUNT'

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I've seen this clue in The Times.

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