Crossword puzzle clue "an idea whose time come"

"An idea whose time ___ come"

Come up with a song idea

Come up with, as an idea

One whose idea may be taking off

1977 film described by Leonard Maltin as "For undiscriminating action fans whose idea of entertainment is watching Bo [Derek] getting her leg bitten off"

___ whose time has come

" . . . an ___ whose time has come": Hugo

Develop over time, as an idea