Uniform involving tie? (4)
I believe the answer is:
even
This clue is a double definition.
'uniform' is the first definition.
(thesaurus)
'tie?' is the second definition.
(thesaurus)
'involving' acts as a link.
(Other definitions for even that I've seen before include "Like half the numbers" , "Placid - not easily angered" , "neck and neck" , "Iron - uniform - flat" , "Commensurate" .)