Pipe organ I played for two children (6,4)

I believe the answer is:

pigeon pair

'two children' is the definition.
(pair of twins of the opposite sex)

'pipe organ i played' is the wordplay.
'played' is an anagram indicator.
'pipe'+'organ'+'i'='pipeorgani'
'pipeorgani' with letters rearranged gives 'PIGEON PAIR'.

'for' is the link.

I've seen this clue in The Times.

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