Arrange to see her footwear device (8)
I believe the answer is:
shoetree
'footwear device' is the definition.
'shoetree' can be an answer for 'device' (shoetree is a kind of device). I'm not certain of the 'footwear' bit.
'arrange to see her' is the wordplay.
'arrange' indicates anagramming the letters.
'to'+'see'+'her'='toseeher'
'toseeher' with letters rearranged gives 'SHOETREE'.
Can you help me to learn more?
(Other definitions for shoetree that I've seen before include "what keeps loafer in shape" , "what's found in Oxford?" , "It preserves the shape of footwear" , "Device to keep footwear in good shape" , "Device put into footwear to maintain shape" .)