The most common and most likely answer to this crossword clue is the 10 letter word LOGOPHILES
I've seen this crossword clue in The Guardian
L
O
G
O
P
H
I
L
E
S
Buddy explains!
The straight part
We know that "Do they love all the words in this clue" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case do they love all the words in this clue = logophiles.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 LOGOPHILES mean?
LOGOPHILES noun- One who loves words; a word buff.