The most common and most likely answer to this crossword clue is the 6 letter word GERBIL
G
E
R
B
I
L
More clues leading to the result GERBIL
- Ad-lib regularly about keeping pet
- ‘Pet’ Nigel, recklessly blowing top, holds back Britain
- Finally roaming free in Cameroon, retiring animal of the desert
- Furry pet rabbit regularly feeds on getting up
- Danger: Bill keeps caged rodent
- Bail out a rodent
- German boy sick to chop off tail of mammal
- Revolutionary, free in France, is after the German leader's desert animal
- Mouse Girl! Be free!
Buddy explains!

The straight part
We know that "pet" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pet = gerbil.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does GERBIL mean?
GERBIL noun- One of several species of small, jumping, murine rodents, of the genus Gerbillus and certain other genera in subfamily Gerbillinae, with leaping powers resembling the jerboa, native to Africa, India, and Southern Europe.
- To rotate inside a monowheel or similar apparatus due to sudden acceleration or braking.
- To insert a small animal into one's rectum (a sexual practice in urban myth).