Lured in, ten brutally murdered (7)
I believe the answer is:
enticed
'lured' is the definition.
('entice' can be a synonym of 'lure')
'ten brutally murdered' is the wordplay.
I cannot quite see how this works, but
an anagram of 'ten' is 'ent' which is within the answer.
'murdered' could be 'iced' (ice can informally mean to murder) and 'iced' is located in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'in' acts as a link.
Can you help me to learn more?
(Other definitions for enticed that I've seen before include "were seductive" , "Persuaded with attractive offer" , "Given inducement" , "Tempted, lured" .)