Constable collection can be seen here (3,8,4)
I believe the answer is:
new scotland yard
This clue could be a double definition.
'constable collection' is the first definition.
The definition and answer can be both groups as well as being singular nouns.
I also know that 'constable' relates to this answer.
'seen here' is the second definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'can be' acts as a link.
Can you help me to learn more?
(Other definitions for new scotland yard that I've seen before include "police HQ" , "A place for pigs!" .)