Crossword puzzle clue "one between 12 and 20"

Yankees manager of the '70s between two Billy Martin stints and of the '80s between two Gene Michael stints

Retreat with one's tail between one's legs

Move with one's tail between one's legs

Network merger between an American company and a French one?

Words between "one day" and "time"

Nightly battle between a spouse who wants to read and one who doesn't?

One studying the relation between organisms and their environment

One of only three golfers who briefly kept Tiger Woods out of the World #1 spot between 1/11/1998 and 10/30/2010