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' is a charade indicator (letters next to each other).
'being dismissed' becomes 'out' (in cricket, to be out is to be dismissed).
'cl'+'out'='CLOUT'
(Other definitions for clout that I've seen before include "weight" , "Bash" , "Whack" , "Sock" , "Hit - influence" .)