Buzz initially within hive is running riot (5)
I believe the answer is:
whirr
'buzz' is the definition.
The definition and answer can be both related to natural events as well as being singular nouns.
Maybe there's an association between them I don't understand?
'initially within hive is running riot' is the wordplay.
'initially' indicates taking the first letters.
The first letters of 'within hive is running riot' is 'WHIRR'.
Can you help me to learn more?
(Other definitions for whirr that I've seen before include "Spin noisily" , "Revolve humming" , "Sound of vibration" , "Sound of vibrations" , "Spin with hum" .)