Hit 150 before being dismissed (5)
I believe the answer is:
clout
'hit' is the definition.
(I've seen this before)
'150 before being dismissed' is the wordplay.
'150' becomes 'CL' (Roman numerals).
'before' says to put letters next to each other.
'being dismissed' becomes 'out' (dismissed in cricket).
'cl'+'out'='CLOUT'
(Other definitions for clout that I've seen before include "weight" , "Bash" , "Whack" , "Sock" , "Hit - influence" .)