Number stay drunk and abusive (5)
I believe the answer is:
nasty
'abusive' is the definition.
(thesaurus)
'number stay drunk' is the wordplay.
'number' becomes 'n' (n can represent any number).
'drunk' indicates anagramming the letters.
'stay' anagrammed gives 'asty'.
'n'+'asty'='NASTY'
'and' is the link.
(Other definitions for nasty that I've seen before include "Offensive or malicious" , "Disgusting" , "Foul" , "Disagreeable" , "Repulsive" .)