When referring to the rank and file as a noun, no. For example: "The rank and file defied union leadership."
However when used as an adjective or a modifier, then yes. "He needs rank-and-file support."
Yes, it should be hyphenated.
Yes it should be hyphenated.
Yes it should be hyphenated.
yes check-up should be hyphenated
It should be hyphenated.
"Field" is not hyphenated.
Yes it should be hyphenated.
Yes it should be hyphenated.
Yes it should be hyphenated.
No it shouldn't be hyphenated.
Self-made should be hyphenated.
No it shouldn't be hyphenated. It is one word.