Tire of emblem (4)
I believe the answer is:
flag
This clue is a double definition.
'tire' is the first definition.
(I've seen this in another clue)
'emblem' is the second definition.
(I know that flag is a type of emblem)
'of' is the link.
(Other definitions for flag that I've seen before include "appears to lose energy" , "Give a signal" , "Draw attention to" , "Jack, for one" , "Iris; pennant" .)