Being too warm, chief gets angry quickly (7)
I believe the answer is:
hothead
'being' is the definition.
(I know that hothead is a type of adventurer)
'too warm chief gets angry quickly' is the wordplay.
I cannot quite see how this works, but
'warm' could be 'hot' (associated in meaning) and 'hot' is present in the answer.
'chief' could be 'head' (synonyms) and 'head' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for hothead that I've seen before include "Tearaway" , "Impetuous irresponsible person" , "Madcap" , "maniac" , "Daredevil" .)