Answer: laboured

AnswerCrossword Clue
laboured(of a ship) Roll or pitch heavily
labouredWork at an unskilled manual occupation
laboured(of an engine) Work noisily and with difficulty
labouredLABOUR, to work, also LABOR
labouredWork hard; make great effort
labouredTill (the ground)
labouredHave difficulty in doing something despite working hard
labouredMove or proceed with trouble or difficulty