Sound uniform on girl wearing a ring (5)
I believe the answer is:
audio
'sound' is the definition.
('audio' can be a synonym of 'sound')
'uniform on girl wearing a ring' is the wordplay.
'uniform on' becomes 'u' (phonetic alphabet: alpha, bravo, charlie etc.. I am not sure about the 'on' bit.**).
'girl' becomes 'di'.
'wearing' means one lot of letters goes inside another.
'ring' becomes 'o'.
'u'+'di'='udi'
'a'+'o'='ao'
'udi' placed within 'ao' is 'AUDIO'.
Can you help me to learn more?
(Other definitions for audio that I've seen before include "Denoting sound" , "What is heard" , "type of reproduction" , "Prefix indicating sound or word" , "Sound system" .)