Answer: labored

AnswerCrossword Clue
LABOREDDrudged
laboredDone with great effort and difficulty
laboredLABOR, to work, also LABOUR
labored(esp. of humor or a performance) Not spontaneous or fluent
LABOREDRequiring effort
LABOREDWorked with great effort
LABOREDStruggled
LABOREDStrained
LABOREDUnnatural; stiff
LABOREDExpended effort
LABOREDLacking spontaneity
LABOREDDifficult
LABOREDWorked like a dog
LABOREDWorked.
LABOREDDone with great effort.
LABOREDNot easy.
LABOREDNot natural.
LABOREDDone with great exertion.
LABOREDWhat Gilliatt did in "Toilers of the Sea."
LABOREDWorked hard
LABOREDToiled
LABOREDDid drudgery
LABOREDContrived