One charge of being angry (5)
I believe the answer is:
irate
'being angry' is the definition.
(irate can mean angry or annoyed)
'one charge' is the wordplay.
'one' becomes 'i' (Roman numeral).
'charge' becomes 'rate' (rate is a kind of charge).
'i'+'rate'='IRATE'
'of' acts as a link.
(Other definitions for irate that I've seen before include "Wrathful" , "Wild" , "raging" , "Angry - furious" , "Boiling" .)