Ranks Scrabble letters required in 'tango'? The opposite (6)
I believe the answer is:
titles
'ranks' is the definition.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for titles that I've seen before include "Names, of books say" , "Designations or headings" , "Terms" , "Handles" , "'Names of books, plays etc (6)'" .)