Crossword Genius

One child in a ring displaying martial art (6)

Ross

I believe the answer is:

aikido

'martial art' is the definition.
(aikido is a kind of martial art)

'one child in a ring' is the wordplay.
'one' becomes 'i' (Roman numeral).
'child' becomes 'kid' ('kid' can be a synonym of 'child'**).
'in' indicates putting letters inside.
'ring' becomes 'o'.
'i'+'kid'='ikid'
'a'+'o'='ao'
'ikid' put inside 'ao' is 'AIKIDO'.

'displaying' is the link.

(Other definitions for aikido that I've seen before include "Defensive moves" , "a particular form of art" , "Japanese form of self-defence" , "one of the martial arts" , "Martial art, akin to judo" .)

I've seen this clue in The Independent.
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