This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
猂 combines 犭 (beast) with 旱 (drought). The exact historical development is uncertain, but it likely originally referred to a fierce or wild animal, possibly associated with dry or harsh conditions.
A beast 犭 in a drought 旱 might be fierce or desperate, but the kanji's meaning is unclear.
For カン, imagine a wild beast in a drought, and you can hear its fierce growl: can -> カン.