Clownfish normally nibble (but don't cause harm) at the tips of anemones' tentacles as part of the process to prevent getting stung. I think your clown may be trying this with your torch. If this is the case, you can remove either of the two, or add an anemone and hope the clown will move in. I'd highly advise not getting an anemone, unless you were planning on getting one, have adequate lighting, and a stable environment.