Had he to get excited? (7)
I believe the answer is:
hothead
'had he to get excited?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'had he to get excited?' is the wordplay.
'get excited?' is an anagram indicator (I've seen 'getting excited' mean this).
'had'+'he'+'to'='hadheto'
'hadheto' with letters rearranged gives 'HOTHEAD'.
Can you help me to learn more?
(Other definitions for hothead that I've seen before include "Madcap" , "Impulsive person" , "Excitable person" , "Person liable to get reckless impulses" , "Daredevil" .)