The most common and most likely answer to this crossword clue is the 2 plus 4 letter word IN LOVE
I've seen this crossword clue in The Times
I
N
L
O
V
E
More clues leading to the result IN LOVE
- Devoted to someone, one has rewritten novel
- What Elizabeth and Darcy were in novel I reviewed
- One silly novel full of amorous emotion
- Besotted with minor bodily expansion
- Novelist downing final quarter, becomes besotted
- One racy novel showing intimacy
- Smitten, I have contracted to cover Nelson occasionally
Buddy explains!

The straight part
We know that "Devoted to someone" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case devoted to someone = in love.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.