Crossword Genius

Communicate what wrong answer may do (3,6)

Ross

I believe the answer is:

get across

I'm a little stuck... Click here to teach me more about this clue!

'communicate' is the definition.
(thesaurus)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for get across that I've seen before include "what crucifer must do first of all" , "Communicate successfully" , "Go over - explain" , "go over viaduct, say" , "Express" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app