Given further coaching, kept bagging runs (9)
I believe the answer is:
retrained
'given further coaching' is the definition.
'kept bagging runs' is the wordplay.
'kept' becomes 'retained' (I've seen this before).
'bagging' means one lot of letters goes inside another (I've seen this in other clues).
'runs' becomes 'r' (cricket abbreviation).
'retained' enclosing 'r' is 'RETRAINED'.
(Other definitions for retrained that I've seen before include "prepared for a new role" , "On losing job, worker may be" , "made fit for new role" .)