Clitheroe earned their first away win of the season in the rain on Saturday.
The locals, for the first time this season, had their strongest squad available.
The hosts started strongly despite being under pressure in the set piece and battle lines were drawn.
Tyldesley were tackling well and making good ground with both forwards and backs and Clitheroe eventually woke up.
The Maroon and Golds gradually gained the ascendancy, but all too often great moves came to nothing as the ball was either dropped or the Tyldesley defence put some big hits in.
Following sustained pressure, Clitheroe were awarded a penalty five metres out and Smith stormed over for his trademark power try.
The conversion was missed but Clitheroe went in at the break 5-0 to the good.
In the second half, Tyldesley increased the pressure on the visitors and some good defence kept the hosts at bay.
But Clitheroe stepped things up and doubled the score when following good ball from a line out and strong running from the returning Thornber, a flowing back line move ended with Latham finishing superbly for his first try.