What does the cryptic crossword clue "Tripping? As I seem to be a cat (7)" mean?

The definition is "cat". The wordplay uses an anagram. anagram of AS + I + SEEM = SIAMESE; definition: "a cat" The answer is SIAMESE.

Tripping? As I seem to be a cat (7)

Guardian Cryptic #27692 | 7 Down | 2018-12-14 flower