English chump's inspiring soft soap (10)
I believe the answer is:
eastenders
'soap' is the definition.
(I've seen this before)
'english chump's inspiring soft' is the wordplay.
'english' becomes 'E' (abbreviation).
'chump' becomes 'ass' (I've seen this in another clue).
'inspiring' means one lot of letters goes inside another.
'soft' becomes 'tender' (associated in meaning).
'ass' enclosing 'tender' is 'astenders'.
'e'+'astenders'='EASTENDERS'
(Other definitions for eastenders that I've seen before include "Soap, for example" , "TV soap" , "BBC TV series" , "Cockneys" , "TV programme" .)