Which word best captures the essence of a subtle indication of something?

The term "nuanced" effectively captures the essence of a subtle indication of something because it refers to the presence of slight differences or variations in meaning, expression, or tone that can convey deeper complexities. In contexts where subtlety is key, nuances help to illustrate an idea or emotion that isn't immediately obvious, requiring a more careful interpretation or understanding. This aligns perfectly with the concept of subtle indications, as they often involve delicate shades of meaning rather than blatant or straightforward signals.

In contrast, options like "clear-cut" and "overt" suggest directness and clarity, which do not convey the same level of subtlety. "Obscure" suggests ambiguity or lack of clarity, which diverges from the idea of a subtle indication that still retains some level of meaning or recognition. Therefore, "nuanced" is the most fitting choice as it embodies the complexity and subtlety needed to express such indications effectively.