It's soft, stick and less than good (3)
I believe the answer is:
goo
'it's soft stick' is the definition.
I can't judge whether this definition defines the answer.
'less than good' is the wordplay.
'less than' means to remove the last letter (not the full word).
'good' with its final letter taken off is 'GOO'.
'and' is the link.
Can you help me to learn more?
(Other definitions for goo that I've seen before include "Sticky or slimy substance" , "Sticky substance (sl.)" , "Sticky gunge" , "mud, for example" , "Viscous matter" .)