He reckons to show a kind of balance (7)
I believe the answer is:
counter
'balance' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
'he reckons to show a kind of' is the wordplay.
I cannot quite understand how this works, but
'show' could be 'er' (US medical drama) and 'er' is present in the answer.
'of' could be 'o' and 'o' is found within the answer.
The remaining letters 'cunt' is a valid word 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 counter that I've seen before include "Where to pay in shop" , "Contrary" , "Oppose; bar; disc" , "Tiddlywink" , "Conversely" .)