What does the cryptic crossword clue "Chihuahua, for example, a little Mexican in effect (6)" mean?

The definition is "Chihuahua, for example,". The wordplay uses a hidden word. hidden in "Mexican in effect" The answer is CANINE.

Chihuahua, for example, a little Mexican in effect (6)

Guardian Cryptic #27494 | 22 Down | 2018-04-27 flower