Colonel sums up the answer between points in London (7,6)
I believe the answer is:
nelsons column
'london' is the definition.
I know nothing about this answer so I can't judge whether this works.
'colonel sums up the answer between points' is the wordplay.
I cannot quite understand how this works, but
'colonel' could be 'col' and 'col' is located in the answer.
'points' could be 'ns' (N is an example) and 'ns' is present in the answer.
This may be the basis of clue (or it may be nonsense).
'in' acts as a link.
Can you help me to learn more?
(Other definitions for nelsons column that I've seen before include "sailor's memorial" , "formed up in square" , "monument" , "Central London landmark" .)