Bit of elastic in hem for undies consumer grabs (9)
I believe the answer is:
suspender
'bit of elastic in hem' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'for undies consumer grabs' is the wordplay.
'for undies' becomes 'us' (I am not sure about this - if you are sure you should believe this answer much more).
'consumer' becomes 'spender' (spender is a kind of consumer).
'grabs' means one lot of letters goes inside another.
'us' put into 'spender' is 'SUSPENDER'.
Can you help me to learn more?
(Other definitions for suspender that I've seen before include "hanger on?" , "One that supports stocking" , "Stocking-holding strap" , "One responsible for hold-up" , "hangman?" .)