* Kirk breaks clear of bunched leaderboard with 66
* Snedeker, Spieth and Bohn tie for second (Adds quotes, detail)
May 24 (Reuters) - American Chris Kirk coolly got up and down from off the green at the 18th hole to salvage par and clinch his fourth PGA Tour title by one shot on Sunday at the $6.5 million Crowne Plaza Invitational in Fort Worth, Texas.
After watching playing partner Brandt Snedeker narrowly miss a 12-footer for birdie at the last, Kirk sank a clutch seven-foot par putt to seal victory with a closing four-under 66 at a rain-saturated Colonial Country Club.