The most common and most likely answer to this crossword clue is the 9 letter word TAILGATED
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Buddy explains!
The straight part
We know that "Followed very closely" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case followed very closely = tailgated.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 TAILGATED mean?
TAILGATED verb- To drive dangerously close behind another vehicle.
- To follow another person through access control on their access, rather than on one’s own credentials, especially when entering a door controlled by a card reader.
- (of a broker) To privately purchase or sell a security immediately after trading in the same security for a client.
- To have a tailgate party.