The phrase "a clear clash between" is correct and usable in written English.
It can be used to describe a noticeable disagreement or conflict between two or more ideas, opinions, or entities.
Example: "There was a clear clash between the two political parties regarding the proposed legislation."
Alternatives: "a distinct conflict between" or "an obvious disagreement between".
Things could quickly turn ugly: Wal-Mart is allergic to unions in the U.S. and Canada, and a media report quoted Phil Davies, national secretary of the GMB, a general trade union in the U.K. that includes Asda workers, as saying there was "a clear clash of cultures between the way workers do business in Britain and the way Wal-Mart does business".
The dispute over gay Boy Scouts is a clear culture clash between a traditional organization that views homosexuality as a threat to "family values" and a minority religious group that sees discrimination against gays as a violation of civil rights.
When Octavian fomented public clamour against Antony's territorial gifts to Cleopatra, it was clear that a clash between the two men was imminent.
On April 19th the Supreme Court heard a case about a clash between the two groups.
"It has become clear over the last year that the upheavals in the Islamic and Arab world have become a clash within a civilization rather than a clash between civilizations," Anthony Cordesman of the Center for Strategic and International Studies wrote recently.
Throughout the crisis there has been the clear possibility of an ultimate clash between, on the one side, Greece's Syriza government and, on the other, the Brussels institutions – with Germany looming in the background.
The potential for a broader clash between Alawites and Sunnis is clear, and it would probably not be confined to Syria.
As the drive for a deficit deal slowed, it became clear that disagreements were less over dollars and cents than a broader clash between the two parties over the size and role of government.
