Here's the corrected sentence:
The words of puppeteers must be spoken clear for all to hear.
You could also improve the sentence by adding an article before "words":
The words of puppeteers must be spoken clear for all to hear.
Here's the corrected sentence:
The words of puppeteers must be spoken clear for all to hear.
You could also improve the sentence by adding an article before "words":
The words of puppeteers must be spoken clear for all to hear.