Answer: tonedup

AnswerCrossword Clue
TONEDUPMolded one's muscles
TONEDUPStrengthened
TONEDUPStrengthened, as muscles
TONEDUPWorked out
TONEDUPGot into shape
TONEDUPStrengthened muscles
TONEDUPCut down on the flab
TONEDUPBuff
TONEDUPLike gym rats
TONEDUPGot fit