Thought to be shot out of some guns (7)
'thought' is the definition.
(I've seen this before)
'be shot out of some guns' is the wordplay.
I cannot quite understand how this works, but
'be' could be 'figure' (figuring is a kind of being) and 'figure' is present in the answer.
A single letter 'd' remains which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
'to' acts as a link.
Can you help me to learn more?
(Other definitions for figured that I've seen before include "Thought", "Reckoned".)