Hi there, Butterfly...
Not sure if you have a glitch going here or not, but you do have to use the right key in the right lock. The "clipper" thing showing up is a mystery to me. Do this:
WARNING SPOILER:
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Insert your two keys in the appropriate keyholes. The key with the symbol that looks like a G goes in the right side keyhole. The key with the sort of half-moon symbol goes in the left keyhole. Push the outer turn arrow on each lock once. Then press the "turn" indicator.
If you can't do that, go back to a save game and follow a slightly different path coming up to the desk drawer puzzle. This technique will often shake loose a glitch.
Witchen