Unravel the Mystery: Overflowing Supply Revealed!

The answer to the crossword question ‘Supply in abundance is HEAP‘ is the word “Saturate“. To understand this, we need to break down the clue. “Supply in abundance” indicates that something abundant or plentiful is being referred to. The word “is” suggests a form of equality or equivalence. Finally, the word “HEAP” is a synonym for a large amount or pile. Putting these elements together, we find that the word that fits the clue is “Saturate“, as it means to supply or fill something to the point of abundance or overflowing.