Shackle males disrupting later broadcast (7)
I believe the answer is:
trammel
'shackle' is the definition.
(I know that shackle can be written as trammel)
'males disrupting later broadcast' is the wordplay.
'males' becomes 'mm' (an abbreviation for male written twice).
'disrupting' indicates putting letters inside (inside letters 'disrupt' the flow of outside one).
'broadcast' indicates anagramming the letters (letters scattered or cast around).
'later' with letters rearranged gives 'trael'.
'mm' put within 'trael' is 'TRAMMEL'.
(Other definitions for trammel that I've seen before include "Three-layered fishing net - melt ram (anag)" , "Hinder - impede" , "Place limits on" , "Limit, hamper" , "Hamper, as drag-net does" .)