The most common and most likely answer to this crossword clue is the 7 letter word CONFORM
I've seen this crossword clue in The Times
C
O
N
F
O
R
M
More clues leading to the result CONFORM
- Fit in Charlie, playing well
- Study racehorse’s record and fit in
- See fit to follow
- Fit in with conservative class
- Match against schoolchildren
- Follow the rules of conservative in fine fettle
- Clubs playing as well as they can in match?
- Get into line and come first by playing well
- Start off at 17, from having a change of heart to toe the line
- Correspond with head of college about criminal record
Buddy explains!

The straight part
We know that "to follow" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case to follow = conform.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 CONFORM mean?
CONFORM verb- (of persons, often followed by to) To act in accordance with expectations; to behave in the manner of others, especially as a result of social pressure.
- (of things, situations, etc.) To be in accordance with a set of specifications or regulations, or with a policy or guideline.
- To make similar in form or nature; to make suitable for a purpose; to adapt.