Some yoga — the recruits assemble (6)
I believe the answer is:
gather
'assemble' is the definition.
(synonyms)
'some yoga the recruits' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'GATHER' is hidden in the letters of 'yoga the recruits'.
(Other definitions for gather that I've seen before include "Collect; understand" , "Congregate" , "Collect or come together" , "Come together for the rag" , "put in pleats" .)