Just the place to go with an oppo? (4)
I believe the answer is:
site
'just the place' is the definition.
I can't tell whether this definition defines the answer.
'go with an oppo?' is the wordplay.
'go' becomes 'sit' (sitting is a kind of going).
'with' is a charade indicator (letters next to each other).
'an oppo?' becomes 'e' (I can't justify this - if you can you should believe this answer much more).
'sit'+'e'='SITE'
'to' is the link.
Can you help me to learn more?
(Other definitions for site that I've seen before include "setting" , "Locate - place" , "Designated place" , "Area set aside for building" , "Location (of building, dig etc)" .)