Crossword Clue:

It might turn a B into an A

AnswerCrossword Clue
EXTRACREDITIt might turn a B into an A
SHOWIMPROVEMENTTurn a B into an A
LOUSEIt might turn you into a nitpicker
PENALTYSTROKEIt could turn a par into a bogey
LEASHIt might prevent a boxer from getting into a fight
CRUSADEWhat a cause might turn into