Was it due to a girl he upset that he lost his head? (7)
I believe the answer is:
raleigh
'he upset that he lost his head?' is the definition.
'Raleigh' can be an answer for 'he'. I am unsure of the remainder of the definition.
'was it due to a girl' is the wordplay.
I cannot quite understand how this works, but
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found within the answer.
'a' is within the answer.
an anagram of 'girl' is 'rlig' which is located in the remaining letters.
A single letter 'h' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for raleigh that I've seen before include "English explorer" , "Sir Walter --, courtier" , "Queen's favourite" , "old naval hero" , "Tudor courtier" .)