A deadly sin? I concur (6)

I believe the answer is:

agreed

'i concur' is the definition.
('I concur' expresses agreement)

'a deadly sin?' is the wordplay.
'deadly sin?' becomes 'greed' (greed is a kind of deadly sin).
'a'+'greed'='AGREED'

(Other definitions for agreed that I've seen before include "Consented and concurred" , "I'll go along with that" , "Was consistent" , "Said yes" , "Corresponded" .)

I've seen this clue in The Times.

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