‘Close’, ‘termination’ and finally - this? (3)

I believe the answer is:
end
'this?' is the definition.
The definition suggests a singular noun which matches the answer.
'close termination and finally' is the wordplay.
'finally' suggests the final letters.
The last letters of 'close termination and' are 'END'.
Can you help me to learn more?
(Other definitions for end that I've seen before include "'Finish, cease (3)'" , "Finish, wind up" , "For Chelsea or Villa, it's a" , "SECOND PART OF 10" , "Conclusion or purpose" .)
