Mark as accomplished then dress down (4,3)
I believe the answer is:
tick off
This might be a double definition.
'mark' is the first definition.
(synonyms)
'accomplished then dress down' is the second definition.
Although both the answer and definition are verbs in their base form, I can't see how they can define each other.
'as' is the link.
Can you help me to learn more?
(Other definitions for tick off that I've seen before include "Mark items individually" , "Chastise - check items on a list" , "Reprimand (someone)" , "Reprimand (sl.)" , "Rebuke" .)