Being angry, I scold (5)
I believe the answer is:
irate
'being angry' is the definition.
(irate can mean angry or annoyed)
'i scold' is the wordplay.
'scold' becomes 'rate' (I've seen this before).
'i'+'rate'='IRATE'
(Other definitions for irate that I've seen before include "Livid" , "Annoyed, irritated" , "Cross, irritated" , "Angry, enraged" , "Angry - furious" .)