King and Queen worried about a martial activity (6)
I believe the answer is:
karate
'martial activity' is the definition.
'karate' can be an answer for 'activity' (karate is a kind of activity). I am unsure of the 'martial' bit.
'king and queen worried about a' is the wordplay.
'king' becomes 'K' (abbreviation for king in chess).
'and' is a charade indicator (letters next to each other).
'queen' becomes 'r' (abbreviation for regina, e.g. in ER ).
'worried' becomes 'ate' (something worrying may eat someone up).
'about' is a charade indicator (letters next to each other).
'r'+'ate'='rate'
'rate' put after 'a' is 'arate'.
'k' put next to 'arate' is 'KARATE'.
Can you help me to learn more?
(Other definitions for karate that I've seen before include "method of fighting" , "A taker (anag)" , "Japanese martial art" , "A Jap. martial art" , "fighting system" .)