One is playing and making din (5)
I believe the answer is:
noise
'making din' is the definition.
'noise' can be an answer for 'din' (a din is a noisy disturbance). I am not certain of the 'making' bit.
'one is playing' is the wordplay.
'playing' indicates an anagram.
'one'+'is'='oneis'
'oneis' anagrammed gives 'NOISE'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for noise that I've seen before include "Excessive sound" , "Hum" , "Row" , "Sound - gossip" , "Static - sound" .)