The home side squandered a whole host of chances in the opening 15 minutes and were soon made to pay by the visitors, who ran in two tries in either half to seal a bonus-point win.
Joe Ford and Dean Ashfield crossed for Clevedon in the final quarter, with Mike Taylor converting both.
On a dry surface at Coleridge Vale, the home side picked up where they had left off against Bridgwater the previous week, moving the ball at pace and breaking the line at will – but they were unable to capitalise on their dominance and Teignmouth soon took advantage.
Their first try came courtesy of a driving maul, which the Clevedon pack was unable to halt, while their second came from an overlap on the left-hand side of the field.
Midway through the second half, Teignmouth struck again, with a tidy finish in the right-hand corner after Clevedon had failed to clear their lines.
A penalty try awarded at the scrum completed the visitors’ scoring.
With 15 minutes remaining, hooker Joe Ford picked a good line to crash over from ten yards out.
Minutes later, a powerful surge from Aaron Rice took Clevedon into the Teignmouth 22, and quick hands on the short side saw Dean Ashfield barge over from close range.
The hosts almost grabbed a losing bonus-point in the dying minutes, when a last-gasp tap-tackle saw Rice brought down just short following another scything break, but it wasn't to be for Clevedon, who were left to rue a wasteful performance.
Clevedon will need to improve in time for next weekend’s crunch clash at Wells, with both sides still fighting to guarantee their South West One West for next season.