Singular faith in tedious speech (6)
I believe the answer is:
screed
'tedious speech' is the definition.
'screed' can be an answer for 'speech' (screed is a kind of speech). I am unsure of the 'tedious' bit.
'singular faith' is the wordplay.
'singular' becomes 's' (abbreviation sometimes used in dictionaries).
'faith' becomes 'creed' (someone's faith or religious belief).
's'+'creed'='SCREED'
'in' is the link.
Can you help me to learn more?
(Other definitions for screed that I've seen before include "Lengthy piece of writing" , "Long speech or text" , "Long speech made by Saint Faith?" , "Tiresomely long letter about creeds" , "Tedious speech; cement" .)