Going into Tolstoy, staged plays (4)
I believe the answer is:
toys
'plays' is the definition.
(I've seen this before)
'going into tolstoy staged' is the wordplay.
'going into' indicates a hidden word.
'TOYS' is hidden within 'tolstoy staged'.
(Other definitions for toys that I've seen before include "Matters of no importance" , "dolls, for example" , "Children's playthings" , "Trifles with playthings" , "Chihuahuas?" .)