This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
欇 is a rare character composed of 木 (tree) and 聶 (a phonetic component). The exact historical development and original meaning are uncertain.
A tree 木 beside the complex 聶 component. Without a clear meaning, picture a mysterious ancient tree with many ears (耳) listening to the wind.
For ショウ, imagine a show (ショウ) being performed under this mysterious tree, with the many ears of 聶 listening intently.
—