Answer: water

AnswerCrossword Clue
WATERMarathoner's need
WATERMoisten the marigolds
WATERNo-calorie beverage
WATERDesert wanderer's request
WATER10K race handout
WATERTend to, as flowers
WATERFirefighting need
WATERRadiator filler
WATERTend the plants
WATERWhat rises in a flood
WATERZero-calorie beverage
WATERKind of chestnut or polo
WATEREvian product
WATERIrrigate
WATERFeed a plant
WATERFeed, in a way
WATERIt freezes at 32 degrees F
WATERFreshen up the freesia
WATERPower or proof start
WATERRestaurant freebie
waterodorless, tasteless liquid composed of hydrogen and oxygen that forms rivers, seas, lakes, rain, etc.
WATERDesert cry
WATERMarathon handout
WATERNo-cal drink
WATERWell content?
WATERWhat ten theme answers contain
WATERAquarium contents
WATERHomeowner's monthly expense
WATERWhat carbon dioxide reacts with to form carbonic acid
WATERShort-supply item in the news
WATERSpring flower?
WATERBather's need
WATERGive the plants a drink
WATERAquafina product
WATERDesert request
WATERDilute, with "down"
WATERWord that can precede either part of the answers to starred clues
WATERDrink disparaged by W.C. Fields
WATERPlant need
WATER-