The most common and most likely answer to this crossword clue is the 7 letter word EMULATE
E
M
U
L
A
T
E
More clues leading to the result EMULATE
- Copy flightless bird no longer living
- Australian bird, a sort of teal, is mimic
- Bird unable to fly behind mirror
- Mimic bird with two notes
- Mimic large bird – teal, perhaps
- Follow fast runner, then slow
- Mimic bird, teal maybe?
- Bird slow to to imitate
- Try to surpass bird consumed around start of lunch
- Ape and flightless bird extinct
Buddy explains!

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 EMULATE mean?
EMULATE verb- To attempt to equal or be the same as.
- To copy or imitate, especially a person.
- To feel a rivalry with; to be jealous of, to envy.
- Of a program or device: to imitate another program or device
- Striving to excel; ambitious; emulous.