Detectives finding information on bed with rope around its end (3,8,4)
I believe the answer is:
new scotland yard
'detectives' is the definition.
(headquarters of the Metropolitan Police)
'information on bed with rope around its end' is the wordplay.
I cannot really see how this works, but
'information' could be 'news' (news is a kind of information) and 'news' is located in the answer.
'on' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
'with' could be 'and' and 'and' is found within the answer.
'around' could be 'c' (abbreviation for 'circa') and 'c' is found in the answer.
This may be the basis of clue (or it may be nonsense).
'finding' acts as a link.
(Other definitions for new scotland yard that I've seen before include "police HQ" , "A place for pigs!" .)