'Get Out of Denver', e.g., is terrific record (8)
I believe the answer is:
register
'get' is the definition.
The definition and answer can be both related to thinking as well as being verbs in their base form.
Perhaps you can see an association between them that I can't see?
'of denver e g is terrific record' is the wordplay.
'of' says the answer is hidden in the clue.
'REGISTER' can be found hidden inside 'denver e g is terrific record'.
'out' acts as a link.
Can you help me to learn more?
(Other definitions for register that I've seen before include "a manner of speaking" , "Obituary" , "See 1" , "Annals" , "Written record of names, etc" .)