Benders the lower members have (5)

I believe the answer is:

knees

I'm a little stuck... Click here to teach me more about this clue!

'benders' is the definition.
(things which often 'bend')

I cannot understand how the rest of the clue works.

(Other definitions for knees that I've seen before include "Leg joints" , "Hinge joints" , "Legs' joints" , "Lap" , "Hinged joints" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.