Led in by Duff, everyone entering cul-de-sac
I believe the answer is:
blind alley
'cul-de-sac' is the definition.
('blind alley' can be a synonym of 'cul-de-sac')
'led in by duff everyone entering' is the wordplay.
I cannot quite understand how this works, but
'in' is present in the answer.
'everyone' could be 'all' (I've seen this before) and 'all' is located in the answer.
an anagram of 'led' is 'lde' which is present in the remaining letters.
'by' is present in the answer.
This accounts for all the letters.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for blind alley that I've seen before include "no progress there" , "dead-end position" , "no escape route" , "Cul-de-sac" .)