Unlikely double act formed when poodle dances with short duck (3,6)
I believe the answer is:
odd couple
'unlikely double act formed' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'poodle dances with short duck' is the wordplay.
'dances with' is an anagram indicator.
'short' means to remove the last letter.
'duck' with its final letter taken away is 'duc'.
'poodle' with its letters mixed up with 'duc' gives 'ODD COUPLE'.
'when' acts as a link.
Can you help me to learn more?
(Other definitions for odd couple that I've seen before include "occasionally drunk" , "Peculiar duo (in play)" , "Unsuited partners" , "Ill-matched pair - Lemmon and Matthau" .)