Support visit (4)
I believe the answer is:
stay
I believe this clue is a double definition.
'support' is the first definition.
(I know that stay is a type of brace)
'visit' is the second definition.
(I know this)
(Other definitions for stay that I've seen before include "Rope to brace an upright" , "Remain - support" , "guy to > put off" , "remain in the same place" , "Abide" .)