Left behind, eschew tea, as we hear, before bedtime? (9)
I believe the answer is:
forgotten
'left behind' is the definition.
(I've seen this before)
'eschew tea as we hear before bedtime?' is the wordplay.
'eschew' becomes 'forgo'.
'as we hear' shows a homophone (sound like).
'before' means one lot of letters go next to another.
'bedtime?' becomes 'ten' (ten is often used as a bedtime).
'tea' is a homophone of 't'.
'forgo'+'t'+'ten'='FORGOTTEN'
(Other definitions for forgotten that I've seen before include "Ignored" , "Unremembered" , "Disregarded" , "No longer known" , "Gone from memory" .)