clincher

Converse of object

• score: Then a pass from Jack to Louis sent Ed through and he scored a clincher, putting us up 1-0.

Adjective modifier

• real: Here's a real clincher to the line about voting machines being the safest, most secure form of voting ever devised.
• final: This was my final clincher of an argument with Alun in the Welsh Office.

Modifies a noun

• tire: It is entirely made out of carbon in both tubular and clincher tire versions ( CORIMA patent ).