Adhesive to fix luge (4)
I believe the answer is:
glue
'adhesive' is the definition.
(I know that glue is a type of adhesive)
'fix luge' is the wordplay.
'fix' is an anagram indicator.
'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" .)