Dutch to English Tech/Engineering Ships, Sailing, Maritime Thanks a lot

We have inside a text over marine several times the expression "klaar anker".
I didn't find any reference about this word traslated in English.
Extract from the text :
"Klaar anker: het anker komt vrij van obstakels en ongeschonden boven water.
Onklaar anker: het anker komt boven water, niet vrij van obstakels en het zal geklaard moeten worden voordat het doorgedraaid kan worden tot in de kluis."
Can somebody help me in finding the good terminology in this case ? We understand what it means but the translation must be precise.

Thanks a lot in advance.
Kind regards