Hovering pieces are enemy pieces that are just hanging around on your side of the board. Usually, they are up to no good!
In particular, hovering pieces are often attacking one of the pawns in front of your King. They cannot immediate take it, and there’s no immediate sacrifice, but they should not be under-estimated. They are very dangerous.
Hovering queens are the worst type. A Queen can hover around near your King while still staying on their side of the board.
The typical defensive response is to knock them back. Knights and Bishops that come onto your side of the board, especially on the Kingside, should be biffed with the rook pawn (or sometimes another pawn). If biffing does not work, try to swap them off, or otherwise neutralize the attacking pieces that are hovering.
Related Chess Tactics
Read more about these related chess strategies: