The equivalent of a mile out? (5)
I believe the answer is:
amiss
'out?' is the definition.
(thesaurus)
'the equivalent of a mile' is the wordplay.
I cannot quite understand how this works, but
'a' is present in the answer.
'mile' could be 'mi' (synonyms) and 'mi' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for amiss that I've seen before include "Wrongly" , "Not quite right" , "Out of order" , "error" , "Wrorg" .)