Mammoth Uncensored Word List:
44 words ending with rk, 10 letters long

angelshark basketwork boullework breastwork bridgework brightwork camerawork cementwork checkclerk clutchwork copperwork coursework crewelwork donkeywork enamelwork figurework fingermark groundwork houndshark looyenwork masterwork meadowlark needlework nonnetwork pentaquark reichsmark rubblework rusticwork salesclerk schoolwork screenwork scrollwork spiderwork stitchwork stuccowork subnetwork timberwork underclerk velvetwork wattlebark wattlework wickerwork wonderwork yellowbark