Definition of "clear-cut"

One of the questions which seem to recur more often that most is the reason for selection of the red light as a danger signal on railways. As in so many cases there is no clear-cut answer.

1943 July and August, “Red Light for Danger”, in Railway Magazine, page 189

I had no doubt as to how the vast majority of voters would respond. I was convinced that given such a clear-cut choice, the American people would elect to move forward with a program of social progress.

1971, Lyndon Johnson, The Vantage Point‎, Holt, Reinhart & Winston, page 104

The differences between slang, colloquialism and jargon are not clear-cut.

1996, James Lambert, The Macquarie Book of Slang, Sydney: Macquarie Library, page v

France were supposedly a team in pieces, beaten by Tonga just a week ago and with coach Marc Lievremont publicly berating his players, but so clear-cut was their victory that much of the atmosphere had been sucked from the contest long before the end.

2011, Tom Fordyce, Rugby World Cup 2011: England 12-19 France‎

While in the most serious cases mounting an investigation is usually mandatory, there are other occasions where it is less clear-cut or when it is concluded that an investigation would not fulfil RAIB's objectives to improve safety or prevent future accidents.

2021 December 29, Paul Stephen, “Rail's accident investigators”, in RAIL, number 947, pages 30–31