They have serious discussions about a bed rest (8)
I believe the answer is:
debaters
'they have serious discussions' is the definition.
The definition suggests an adverb but the answer is not.
'about a bed rest' is the wordplay.
'about' is an anagram indicator.
'a'+'bed'+'rest'='abedrest'
'abedrest' is an anagram of 'DEBATERS'.
Can you help me to learn more?
(Other definitions for debaters that I've seen before include "They argue both sides of the argument" , "They argue the pros and cons of a subject" .)