The phrase "aloadof" is actually an abbreviation of "a load of." In this context, it means a large amount or quantity of something. So, when combined with the clue "countless," "aloadof" suggests there is an immeasurable or countless quantity of something.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Countless. Explanations are generated by AI and may be inaccurate.