Has no doubt this line is coming out of turnstiles (6)
I believe the answer is:
trusts
'has' is the definition.
The definition and answer can be both to do with ownership as well as being verbs in their -s form.
Perhaps there's an association between them I don't understand?
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for trusts that I've seen before include "Confidently expects" , "Has faith or confidence in" , "modern hospital managers" , "Credits; monopolies" , "Has confidence or believes in" .)