The most common and most likely answer to this crossword clue is the 10 letter word TEMPORALLY
I've seen this crossword clue in The Times
T
E
M
P
O
R
A
L
L
Y
More clues leading to the result TEMPORALLY
Buddy explains!

The straight part
We know that "In time" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in time = temporally.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 TEMPORALLY mean?
TEMPORALLY adverb- In a temporal manner.