Solos, in the context of the given clue, refer to performances that are done individually or by a single person. These performances are likely to cause sweaty palms, indicating that they are intense, nerve-wracking, or highly skilled.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Performances most likely to cause sweaty palms. Explanations are generated by AI and may be inaccurate.