The most common and most likely answer to this crossword clue is the 6 letter word BODILY
B
O
D
I
L
Y
Buddy explains!

The straight part
We know that "in person" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in person = bodily.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 BODILY mean?
BODILY adjective- Of, relating to, or concerning the body.
- Having a body or material form; physical; corporeal.
- Real; actual; put into execution.
- In bodily form; physically, corporally.
- Pertaining to the whole body or mass; wholly.
- Forcefully, vigorously.