Getfit

3 clues
Tone up
Work out
Trim up, say
Similar answers:
Abigdealoutofit
Abridgetoof
Abridgetoofair
Abridgetoofar
Accruedbenefits
Aclockdidnotget
Adbudget
Addtogether
Adjustforthefunofit
Afghanistangetz
Afit
Afitof
Aget
Agetechnicians
Ageten
Agetwo
Agogetterram
Ahashofit
Allofit
Alltogether