Resurgent Australian openers batting — what might stop them? (4)
I believe the answer is:
rain
'what might stop them?' is the definition.
I can't tell whether this definition defines the answer.
'resurgent australian openers batting' is the wordplay.
'openers' suggests taking the first letters.
'batting' becomes 'in'.
The first letters of 'resurgent australian' is 'ra'.
'ra'+'in'='RAIN'
(Other definitions for rain that I've seen before include "Weather - shower" , "Falling moisture" , "Wet weather" , "downfall?" , "The ---, it ---eth every day (T.Night)" .)