Tricks pair at bridge — opponents there? (13)

I believe the answer is:

doublecrosses

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'there?' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'tricks pair at bridge opponents' is the wordplay.
'tricks pair' becomes 'double' (I can't justify this - if you can you should believe this answer much more).
'at' says to put letters next to each other.
'bridge' becomes 'cross' (bridge can mean to cross over).
'opponents' becomes 'es' (I've seen this in other clues).
'double'+'cross'+'es'='DOUBLECROSSES'

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I've seen this clue in The Times.

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