Test openers from Denmark ran you ragged, until now (3,3)
I believe the answer is:
dry run
'test' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?
'openers from denmark ran you ragged until now' is the wordplay.
'openers from' suggests taking the first letters (letters which open the words are used).
The first letters of 'denmark ran you ragged until now' is 'DRY RUN'.
Can you help me to learn more?
(Other definitions for dry run that I've seen before include "Arid trot as kind of rehearsal" , "Practice session, rehearsal" , "Dummy trial on thirsty trot?" , "Rehearsal like arid trot" , "Practice session in preparation for public performance" .)