The most common and most likely answer to this crossword clue is the 5 letter word MOOSE
I've seen this crossword clue in Independent
M
O
O
S
E
More clues leading to the result MOOSE
- Second outsize European deer
- Animal lows on top of escarpment
- Rodent has change of heart, seeing big creature with horns
- Animal imitates the noise of another, having minimal energy
- Reportedly sweet animal
- Creature makes lowing sound on top of escarpment
- What a European would call these flipping feckless displays!
- Sounds like cow, eastern US mammal
- Runs from bad-tempered elk
- Republican deserting miserable creature?
Buddy explains!

The straight part
We know that "E.g. Alaskan animal" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case e.g. alaskan animal = moose.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 MOOSE mean?
MOOSE noun- The largest member of the deer family (Alces americanus, sometimes included in Alces alces), of which the male has very large, palmate antlers.
- An ugly person.
- An Asian girl taken as a lover.