What drivers may do when angry about nothing (4)
I believe the answer is:
hoot
'what drivers may do' is the definition.
The definition suggests a singular noun which matches the answer.
'angry about nothing' is the wordplay.
'angry' becomes 'hot' (I've seen this in another clue).
'about' is an insertion indicator.
'nothing' becomes 'O' (looks like zero - 0).
'hot' placed around 'o' is 'HOOT'.
'when' is the link.
Can you help me to learn more?
(Other definitions for hoot that I've seen before include "Owl's cry" , "Owlish cry" , "Owl's call" , "Sound of owl" , "Shout of derision" .)