Crossword Genius

Abolish a ring originally of this shape? (7)

Ross

I believe the answer is:

annular

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

'this shape?' is the definition.
The answer and definition are not the same part of speech.

'abolish a ring originally' is the wordplay.
'abolish' becomes 'annul' (I've seen this before).
'originally' indicates taking the first letters.
The first letter of 'ring' is 'r'.
'annul'+'a'+'r'='ANNULAR'

'of' is the link.

Can you help me to learn more?

(Other definitions for annular that I've seen before include "Shaped like a ring" , "Circular" , "in a band" , "Ring-shaped" , "Forming a ring" .)

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