Be hot turning red and irritated (8)
I believe the answer is:
bothered
'irritated' is the definition.
('bother' can be a synonym of 'irritate')
'be hot turning red' is the wordplay.
'turning' is an anagram indicator.
'be'+'hot'='behot'
'behot' with letters rearranged gives 'bothe'.
'bothe'+'red'='BOTHERED'
'and' acts as a link.
(Other definitions for bothered that I've seen before include "Took the trouble to do something" , "` `Bewithched, ... and bewildered' '" , "Under stress" , "The bored, strangely, can be troubled" , "Made an effort -- put out" .)