Hunt Charles I of England (5)
I believe the answer is:
chase
'hunt' is the definition.
(I know that hunt is a more specific form of chase)
'charles i of england' is the wordplay.
I cannot quite understand how this works, but
'charles' could be 'chas' (shortened form) and 'chas' is located in the answer.
'england' could be 'e' (short for England) and 'e' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for chase that I've seen before include "Composed type accommodated in this" , "Hurry" , "Pursuit" , "grave, as before?" , "Pursue, run after" .)