Remark from married chaps in bed (7)
I believe the answer is:
comment
'remark' is the definition.
(commenting is a kind of remarking)
'married chaps in bed' is the wordplay.
'married' becomes 'm'.
'chaps' becomes 'men' (chap means a man).
'in' is an insertion indicator.
'bed' becomes 'cot' (cot is a kind of bed).
'm'+'men'='mmen'
'mmen' inserted within 'cot' is 'COMMENT'.
'from' is the link.
(Other definitions for comment that I've seen before include "Nancy's version of how" , "How suitable for Le Monde" , "Leader writer's forte" , "observation" , "Explanatory note" .)