Frenchman on canal barge has sweetheart in a heavy metal band hampering The Movement (7)
I believe the answer is:
manacle
'the movement' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'frenchman on canal barge has sweetheart in a heavy metal band hampering' is the wordplay.
I cannot quite understand how this works, but
'frenchman' could be 'm' (abbreviation for Monsieur - like 'Mr') and 'm' is found in the answer.
an anagram of 'canal' is 'anacl' which is located in the answer.
'sweetheart' could be 'e' (the heart/centre of 'sweet') and 'e' is found 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 manacle that I've seen before include "Metal shackle" , "item restricting movement" , "restricting at the cuff?" , "Curb" , "Handcuff" .)