Crossword puzzle clue "doors try now we can only"

Doors "Try now we can only __"

1950s-'60s hit with the lyric "Ah, you made me love you / Now, now, now, now your man is come"

Gary Numan "I can lock all my doors, it's the only way to ___ in cars!"

"What did you try to do after the caution flag came out?" [The Doors, 1967]

Doors "My only friend, the ___"

"I can only ___ much!" ("I'm only one person!")

Doors song paradoxically played in an opening sequence of "Apocalypse Now"

Items that can open doors