Thorough assessments of exit have us worried (10)
I believe the answer is:
exhaustive
'thorough' is the definition.
(I know that thorough can be written as exhaustive)
'exit have us worried' is the wordplay.
'worried' is an anagram indicator (worry can mean to interfere with or disturb).
'exit'+'have'+'us'='exithaveus'
'exithaveus' is an anagram of 'EXHAUSTIVE'.
'assessments of' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for exhaustive that I've seen before include "trying out all possibilities" , "Comprehensive" , "all-embracing" , "Thorough" .)