Crossword Genius

Changeable, like pound, and new wife inside (2-3-4)

Ross

I believe the answer is:

up-and-down

'changeable' is the definition.
(I've seen this before)

'pound and new wife inside' is the wordplay.
'new' is an anagram indicator.
'wife' becomes 'w' (abbreviation).
'inside' is an insertion indicator.
'pound'+'and'='poundand'
'poundand' with letters rearranged gives 'upanddon'.
'upanddon' enclosing 'w' is 'UP-AND-DOWN'.

'like' is the link.

I've seen this clue in The Daily Express.
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