This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
狌 combines the animal radical 犭 with 生, but the exact historical development and original meaning are uncertain. It may have originally referred to a type of animal, but this is speculative.
The animal radical 犭 beside 生 (life) could suggest a living creature, but since the meaning is unclear, picture a mysterious animal whose name has been lost to time.
For ショウ, imagine a show where this mysterious animal is finally revealed: show -> ショウ, and the crowd gasps as the rare creature appears.
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