Claudius maybe has power over queen in northerly city (7)
I believe the answer is:
emperor
'claudius maybe' is the definition.
(I know that Claudius is Roman emperor)
'power over queen in northerly city' is the wordplay.
I cannot really understand how this works, but
'power' could be 'pe' (P.E. is an example) and 'pe' is found in the answer.
'over' could be 'o' (cricket abbreviation) and 'o' is found within the answer.
'queen' could be 'r' (abbreviation for regina, e.g. in ER ) and 'r' is found in the answer.
This explanation may well be incorrect...
'has' is the link.
Can you help me to learn more?
(Other definitions for emperor that I've seen before include "chap such as Charlemagne" , "Tsar" , "Sovereign and richly-colored butterfly" , "Large colourful butterfly" , "He rules over several states" .)