Orderly, starting to introduce daily yoga (4)
I believe the answer is:
tidy
'orderly' is the definition.
(similar in meaning)
'starting to introduce daily yoga' is the wordplay.
'starting' says to take the initial letters.
The first letters of 'to introduce daily yoga' is 'TIDY'.
(Other definitions for tidy that I've seen before include "Neat and trim" , "Clear up" , "Neat; sizeable (sum)" , "Arranged neatly" , "small container in which odds and ends are kept" .)