What a Trope Actually Is
A trope is a recurring element that readers of a genre have come to expect and, in many cases, require. The grumpy-sunshine romance pairing. The chosen one. The cozy mystery amateur sleuth who keeps stumbling into murders. These are not clichés in the pejorative sense; they are genre promises. A romance without the guaranteed happy ending is not a subversive romance: it is a broken promise. Understanding tropes as promises rather than limitations changes how you use them. You keep the promise; you vary how you keep it.