Bowlers, possibly hurrying Australian test squad openers (4)
I believe the answer is:
hats
'bowlers possibly' is the definition.
(bowler is a kind of hat)
'hurrying australian test squad openers' is the wordplay.
'openers' indicates taking the first letters.
The initial letters of 'hurrying australian test squad' is 'HATS'.
(Other definitions for hats that I've seen before include "Milliner's stock" , "Headdresses" , ""Porkpie" and "pillbox" attire" , "Headwear" , "Headgear" .)