I count as angry (5)
I believe the answer is:
irate
'angry' is the definition.
('irate' can be similar in meaning to 'angry')
'i count' is the wordplay.
'count' becomes 'rate' (I've seen this in other clues).
'i'+'rate'='IRATE'
'as' is the link.
(Other definitions for irate that I've seen before include "Hacked off" , "Angry - furious" , "Wild" , "I tear away, being annoyed" , "having got in wax" .)