The most common and most likely answer to this crossword clue is the 3 plus 3 letter word PRO TEM
P
R
O
T
E
M
More clues leading to the result PRO TEM
- Corruption in Strasbourg politician reversed for now
- For the time being basic learning is confined to the afternoon
- Occupant of No. 10 keeping repetitious performance for now
- Boris’s repetition accepted for now
- Just for now, introduction has limited time
- For the time being metro is out of order after onset of problems
- Not always brief
- In the meantime, this inn could become prominent
- Short leisurely walk around terrace, empty for now
- Prime Minister must accept rubbish start to election for now
Buddy explains!

The straight part
We know that "Just for now" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case just for now = pro tem.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.