Answer: labouring

AnswerCrossword Clue
labouringMove or proceed with trouble or difficulty
labouringWork hard; make great effort
labouringHave difficulty in doing something despite working hard
labouring(of an engine) Work noisily and with difficulty
labouringTill (the ground)
labouringWork at an unskilled manual occupation
labouringLABOUR, to work, also LABOR
labouring(of a ship) Roll or pitch heavily