The most common and most likely answer to this crossword clue is the 8 letter word EMULATES
I've seen this crossword clue in The Times
E
M
U
L
A
T
E
S
Buddy explains!

The straight part
We know that "tries to follow" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tries to follow = emulates.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 EMULATES mean?
EMULATES 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