Sticky, glutinous (6)
I believe the answer is:
viscid
I believe this clue is a double definition.
'sticky' is the first definition.
(I know that sticky can be written as viscid)
'glutinous' is the second definition.
(I know that glutinous can be written as viscid)
(Other definitions for viscid that I've seen before include "Having the properties of glue" , "Glutinous, sticky" , "Sticky, gluey" , "Of liquid, thick and gluey" , "Cohesive and sticky" .)