(n.) One who is skilled; a master of his business; a proficient; an adept.

Admirable Crichton Daedalian able accomplished adept in adroit anthroposophist apt artisan artist artistic at home in attache authoritative authority bravura brilliant cabalist clean clever connaisseur connoisseur consultant coordinated cordon bleu crack crack shot crackerjack craftsman cunning cute dabster daedal dead shot deft dexterous dextrous diplomat diplomatic diplomatist elder statesman esoteric excellent experienced hand expert expert at expert consultant fancy good good at goodish graceful graduate handy handy at handy man ingenious journeyman magisterial mahatma marksman master master of masterful masterly mystagogue mystic neat no mean no slouch old hand past master polished politic politician pro professional professor proficient proficient in quick quite some ready resourceful savant shark sharp skilled skilled in skillful slick some specialist statesman statesmanlike strong in stylish supernaturalist tactful technical adviser technician the compleat the complete theosophist transcendentalist up on versed versed in virtuoso well up on well-done well-versed whiz wizard workmanlike yogi yogin yogist