The crossword solutions for the term HEAVY DEMAND are TAX and RUN. TAX is a form of government-mandated financial charge or other levy imposed upon a taxpayer by a state or the functional equivalent of a state to fund various public expenditures. RUN is an act of moving swiftly on foot so that both or all feet are not on the ground during each stride. In this context, HEAVY DEMAND could refer to the high demand for taxes and the need to RUN in order to meet the demands of the government.