Sticky (8)
'sticky' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for adhesive that I've seen before include "Hide vase (anag)" , "What a sticker" , "It sticks things together" , "Glue, gum" , "Tacky" .)
(Other definitions for tacky that I've seen before include "Sticky; showing poor taste" , "lacking in taste" , "Unpleasant" , "Cheap and garish" , "Drying but sticky" .)
'sticky' is the definition.
(I know that sticky can be written as gluey)
This is all the clue.