Indian greeting some poets, a mantra recalled (7)
I believe the answer is:
namaste
'indian greeting' is the definition.
'some poets a mantra recalled' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'recalled' is a reversal indicator (to recall can mean to bring something back).
'etsaman' is hidden within 'poets a mantra'.
'etsaman' backwards is 'NAMASTE'.
(Other definitions for namaste that I've seen before include "salutation" , "sign of respect" , "greeting" .)