Rest praised, having ignored a drunk (6)
I believe the answer is:
spider
'rest' is the definition.
(I've seen this before)
'praised having ignored a drunk' is the wordplay.
'having ignored' suggests deleting specific letters.
'drunk' indicates anagramming the letters.
'praised' with 'a' taken away is 'prised'.
'prised' with letters rearranged gives 'SPIDER'.
(Other definitions for spider that I've seen before include "Arthropod; snooker rest" , "Bathtub intruder - snooker rest" , "A crawler" , "Arachnid - snooker rest" , "Snooker equipment" .)