Equipment to make rap electronic disc with Queen (4,8)
I believe the answer is:
tape recorder
'equipment' is the definition.
(tape recorder is a kind of equipment)
'rap electronic disc with queen' is the wordplay.
'rap' becomes 'tap' (synonyms).
'electronic' becomes 'e' (as in e-mail or e-books).
'disc' becomes 'record' (synonyms).
'with' is a charade indicator (letters next to each other).
'queen' becomes 'ER' (short for Elizabeth Regina ie Queen Elizabeth).
'tap'+'e'+'record'+'er'='TAPE-RECORDER'
'to make' acts as a link.
(Other definitions for tape recorder that I've seen before include "Machine for preserving sounds on cassette" , "Device for reproducing sound" , "Device to preserve sound" .)