maintain crossword clue

 Sure, here are some possible crossword clues for the word "maintain":

5 letters: Keep, uphold

6 letters: Conserve, sustain

7 letters: Assert, persevere

8 letters: Continue, preserve

9 letters: Uphold, substantiate

The specific crossword clue that you are looking for will depend on the other clues in the puzzle and the theme of the puzzle.

For example, if the clue is "to keep in good condition", then the answer could be "maintain". If the clue is "to support or uphold", then the answer could also be "maintain".

I hope this helps! Let me know if you have any other questions.