The most common and most likely answer to this crossword clue is the 8 letter word PARODIES
P
A
R
O
D
I
E
S
Buddy explains!

The straight part
We know that "Imitations" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case imitations = parodies.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 PARODIES mean?
PARODIES noun- A work or performance that imitates another work or performance with ridicule or irony.
- A popular maxim, adage, or proverb.
- To make a parody of something.