Being angry, he'd go out to have a meal (6)
I believe the answer is:
heated
'being angry' is the definition.
(I've seen this before)
'he'd go out to have a meal' is the wordplay.
I cannot quite understand how this works, but
'have' could be 'eat' (have can mean to eat or consume) and 'eat' is found in the answer.
'he'd' could be 'hed' and 'hed' is present in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for heated that I've seen before include "Brief extract" , "Furious" , "Vehement" , "Inflamed with passion" , "Angry or warmed" .)