Sozzled maybe, but you can't say they don't give a toss (4)
I believe the answer is:
sots
'sozzled maybe but you can't say they don't' is the definition.
The definition suggests an adverb but the answer is not.
'give a toss' is the wordplay.
'give' is an anagram indicator (I've seen 'giving' mean this (the letters give the letters for another word)).
'toss' is an anagram of 'SOTS'.
Can you help me to learn more?
(Other definitions for sots that I've seen before include "Chronic drinkers" , "Drunks" , "Boozers" , "Habitual drunkards" , "Sponges" .)