Answer:

OLEO

AnswerCrossword Clue
OLEOBread spread
OLEOButter substitute
OLEOCorn product
OLEODairy-section purchase
OLEOErsatz butter
OLEOIt comes in tubs
OLEOMargarine
OLEONon-dairy product
OLEONon-dairy spread
OLEOPromise, for one
OLEOTater topper
OLEOToast topper
OLEOWhat to find in 24A
OLEOBogus butter
OLEOButter alternative
OLEOIt's found in "bars"?
OLEOSoft spread
OLEOSpread in a tub
OLEOSpread served in bars
OLEOTable spread
OLEOIt may be on a roll
OLEOIt's not butter
OLEOPancake topper
OLEOPromise, for one?
OLEOToast cover
OLEOTopping in a tub
OLEONondairy topping
OLEOSpread
OLEOSpread served in bars?
OLEOShortening relative
OLEOMargarine, colloquially
OLEOGrocery stick
OLEOMuffin topper
OLEOStick in the fridge
OLEOPromise, e.g.
OLEOSub in a tub
OLEOIt's sold in bars
OLEOShortening
OLEODieter's butter
OLEOFaux butter