Answer:

fitter

AnswerCrossword Clue
FITTERPipe handler, maybe
FITTERLess flabby
FITTERIn better shape
FITTERTailor's assistant.
FITTERGarment worker.
FITTERWith her, it's snip and tuck
FITTERBoutique employee
FITTERClothing store employee
FITTERTailor, at times
FITTERLess likely to be winded
FITTERMore qualified
FITTERIn improved health