Answer: strove

AnswerCrossword Clue
STROVEStruggled
stroveSTRIVE, to contend (to vie (to contend in rivalry))
stroveto try hard; struggle
STROVEGave it the old college try
STROVEMade a concerted effort
STROVEWent all-out
STROVEMade a valiant effort
STROVEExerted much effort
STROVEPut in effort
STROVEAimed
STROVETook pains
STROVEFought
STROVEWent for it
STROVETried very hard
STROVESpared no effort
STROVETried
STROVEMade an effort
STROVELabored hard
STROVEEndeavored.
STROVEFought.
STROVELabored earnestly.
STROVEStruggled.
STROVETried.
STROVETried hard.
STROVEStruggled for success.
STROVEWorked hard
STROVEMoved heaven and earth
STROVETried mightily
STROVEEndeavored
STROVEContended
STROVELabored
STROVETried hard