Adhesive to fix luge (4)
I believe the answer is:
glue
'adhesive' is the definition.
(glue is a kind of adhesive)
'fix luge' is the wordplay.
'fix' indicates an anagram.
'luge' anagrammed gives 'GLUE'.
'to' is the link.
(Other definitions for glue that I've seen before include "Adhesive substance" , "Stuff that sticks firmly" , "Sticker" , "agent with sticking power" , "Gum" .)