Agrees to accommodate talk organised between USA and Canada (5,5)

I believe the answer is:

upper house

I'm a little stuck... Click here to teach me more about this clue!

'canada' is the definition.
(thesaurus)

'agrees to accommodate talk organised between usa' is the wordplay.
I cannot really understand how this works, but
'accommodate' could be 'house' (I've seen this before) and 'house' is present in the answer.
The remaining letters 'upper' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'and' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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