Alice has a clued 2 in her hand of an unknown color. (It was 2 Saved earlier on in the game.)
What action should Alice perform?
If Alice should give a clue, what card note will be written on the focused card?
Alice could clue yellow to Bob or clue number 2 to Bob. Either clue would be a Play Clue on the yellow 2.
However, it is possible that Alice's clued 2 is a yellow 2. If it is, then Alice would be violating Good Touch Principle and would be wasting a clue.
Thus, it is not Alice's responsibility to clue the yellow 2. Someone else on the team will take care of that. Alice should discard, since there are no other clues to give.