Zenoside
-Insert funny title here-
I wouldnt say a thunderclap is effective at 60 ft away, hell it shouldnt be all that effective at 30 ft away. Sound is not a solid thing, and it loses power quickly in physics. Sound can keep a strong current of echoes to about 20 ft (I think) in a normal room.
The The thing has been held down by webbing before, and blinded by it. Who says that when Spidey wraps him up, he wont take thing for a joyride into several buildings, or dunk him in water till he loses consiousness.
Now The thing could very well keep Spidey at a distance, however, thats how Spidey's dodging works even better. It give him more time to dodge.
Bottom line, If Thing can close the gap between Spidey and him, then Spidey is finished.
If the Thing cant do that, then he stands a very good chance at losing the fight.