Possible Clues:

• More than a lake, we're told, and stranger
• Like haunted houses, compared to ordinary houses
• Ever start to be more of a creep
• English monarch repeatedly admitting one stranger
• More creepy/crawly
• It's more than weird to have it more like 12 across, perhaps
• More freaky
• Like "Psycho," and then some
• More supernatural
• More apt to frighten