Completely engrossed by Shinto talk (2,5)
I believe the answer is:
in total
'completely' is the definition.
(I've seen this in another clue)
'engrossed by shinto talk' is the wordplay.
'IN TOTAL' is hidden within the letters.
But, I am unsure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for in total that I've seen before include "Altogether" , "All told" .)