get something straight
US /ɡet ˈsʌmθɪŋ streɪt/
UK /ɡet ˈsʌmθɪŋ streɪt/

1.
to clarify or understand something correctly
:
•
Let's get something straight: I'm in charge here.
•
I need to get something straight about the project deadline.
to clarify or understand something correctly