Wartime captive meeting monarch might (5)
I believe the answer is:
power
'might' is the definition.
(I know that might can be written as power)
'wartime captive meeting monarch' is the wordplay.
I cannot really understand how this works, but
'captive' could be 'pow' (prisoner of war) and 'pow' is found in the answer.
'monarch' could be 'er' (abbreviation for Elizabeth Regina, British Queen) and 'er' is located 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 power that I've seen before include "Force - potentiality" , "What may be measured in watts" , "The ability to make" , "product" , "- - of attorney" .)