Location at the opposite end (4)
I believe the answer is:
site
'location' is the definition.
(site is a kind of location)
'at the opposite end' is the wordplay.
'at' becomes 'sit' (I can't explain this - if you can you should believe this answer much more).
'end' says to take the final letters.
The final letter of 'opposite' is 'e'.
'sit'+'e'='SITE'
Can you help me to learn more?
(Other definitions for site that I've seen before include "Designated place" , "Locality" , "Locate - place" , "Location (of building, dig etc)" , "internet location" .)