Answer: rub

AnswerCrossword Clue
RUBSignal the genie
RUBDifficulty
RUBTenseness treatment
RUBFly in the ointment
RUBSummon a genie, in a way
RUBSpices for barbecue
RUBEmulate a masseuse
RUBDifficulty, to the Bard
RUBObstacle, to Shakespeare
RUB"Ay, there's the ...": Hamlet
RUBSoothe, as sore muscles
RUBObstacle, to Hamlet
RUBSummon a genie
RUBFondle, as a rabbit's foot
RUBGive a massage to
RUB"Ay, there's the ..."
RUBCause some friction
RUBMake like a masseur
RUB"Ay, there's the ..." (words from Hamlet)
RUBBarbecuing application of herbs and spices
rubto smooth off, polish, or apply a coating to
RUBComplication
RUBTry to work the knots out of, as a muscle
RUBTug partner
RUBMassage
RUBSource of irritation
RUBAbrade
RUBChafe
RUBHitch, per Hamlet
RUBJerk seasoning, e.g.
RUBDry equivalent of a marinade
RUBSpice massaged onto raw food
RUBObstacle
RUBImpediment
RUBPre-barbecuing spice application
RUBWork on a stain, say
RUBSummon the genie
RUBErase, with "out"
RUBMeat seasoning mixture
RUBPolish, say