Wanting top, picked out legwear (4)
I believe the answer is:
hose
'legwear' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for hose that I've seen before include "Water pipe" , "footwear" , "Garden implement" , "Socks and stockings" , "Stockings; drench" .)