How Prince Harry might call his wife unofficially round the Queen? Lots of resistance (6)
I believe the answer is:
megohm
'how prince harry might call his wife unofficially' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'round the queen? lots of resistance' is the wordplay.
'round' says the letters should be written in reverse.
'the queen?' becomes 'ge' (I am not sure about this - if you are sure you should believe this answer much more).
'lots of' becomes 'm'.
'resistance' becomes 'ohm' (I've seen this before).
'ge'+'m'='gem'
'gem' backwards is 'meg'.
'meg'+'ohm'='MEGOHM'
Can you help me to learn more?
(Other definitions for megohm that I've seen before include "Large unit of resistance" , "a good deal of resistance" , "a lot of resistance?" .)