Chair parts (8)
'chair parts' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for legs that I've seen before include "associated with 11 in game" , "Sections of a journey or course" , "Members" , "Stages of a journey" , "Lower limbs" .)
(Other definitions for armrests that I've seen before include "Side parts of a chair" , "supports" .)