Labels required for neckwear and everything inside (7)
I believe the answer is:
tallies
'labels' is the definition.
The answer and definition can be both related to communication as well as being plural nouns.
Maybe there's an association between them I don't understand?
'neckwear and everything inside' is the wordplay.
I cannot really see how this works, but
'everything' could be 'all' (all things) and 'all' is present in the answer.
'neckwear' could be 'ties' (I've seen this in another clue) and 'ties' is present in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'required for' acts as a link.
Can you help me to learn more?
(Other definitions for tallies that I've seen before include "Agrees; scores" , "Recordings" , "Records" , "Reckons debt or score" , "Sums up" .)