Suddenly appears, with “up” Crossword Clue

 The answer to the crossword clue "Suddenly appears, with “up”" is BOB UP.

The verb "bob" means to move up and down quickly and lightly. It can also mean to appear suddenly or unexpectedly. So, the phrase "bob up" can be interpreted as "appearing suddenly or unexpectedly".

The answer "BOB UP" is a 5-letter word, which fits the length of the clue. It is also a common phrase that is used in crossword puzzles.

Here are some other words that can be used to complete the crossword clue "Suddenly appears, with “up”":

Arise

Emerge

Pop up

Surface

Turn up

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