Answer: castironstomach

AnswerCrossword Clue
CASTIRONSTOMACHTrencherman's asset
CASTIRONSTOMACHSpare part for a robot?
CASTIRONSTOMACHIt's impervious to indigestion
CASTIRONSTOMACHDigestive system asset, figuratively
CASTIRONSTOMACH"Battle of the Buffets" asset
CASTIRONSTOMACHCompetitive eater's asset
CASTIRONSTOMACHIndigestion-proof organ
CASTIRONSTOMACHIt takes a lot to get one upset
CASTIRONSTOMACHDigestive fortitude?
CASTIRONSTOMACHStaunch digestive system
CASTIRONSTOMACHGastronomic asset