Name one group of people that's close (11)
I believe the answer is:
termination
'close' is the definition.
(I've seen this before)
'name one group of people' is the wordplay.
'name' becomes 'term' (both can mean a word for something).
'one' becomes 'i' (Roman numeral).
'group of people' becomes 'nation'.
'term'+'i'+'nation'='TERMINATION'
'that's' is the link.
(Other definitions for termination that I've seen before include "Conclusion" , "Finish" , "End" , "Stopping" , "close" .)