Funeral item that may require a DJ? (5,3)

I believe the answer is:

black tie

I believe this clue is a double definition.

'funeral item' is the first definition.
(item worn at a funeral)

'that may require a dj?' is the second definition.
(DJ for dinner jacket)

(Other definitions for black tie that I've seen before include "Accompaniment of 11" , "Formal (neck)wear" , "Formal evening wear for men" , "expensive party-going habit" , "Formal attire" .)

I've seen this clue in The Telegraph.

Want a hint initially instead of a full solution? Install my app