Equipment for performer absorbing us in this? (5)
I believe the answer is:
music
'equipment for performer absorbing us in this?' is the definition.
The definition suggests a singular noun which matches the answer.
'us in this?' is the wordplay.
'in' means one lot of letters goes inside another.
'this?' becomes 'mic' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'us' placed within 'mic' is 'MUSIC'.
Can you help me to learn more?
(Other definitions for music that I've seen before include "melodies" , "being confined by bars?" , "'My - - ' , radio quiz" , "A score represents it" , "'''If ... be the food of love, play on'' (Twelfth Night) (5)'" .)