Sequences covered by organs, coming before the service, say? (9)
I believe the answer is:
earliness
'coming before the service say?' is the definition.
I can't tell whether this defines the answer.
'sequences covered by organs' is the wordplay.
'sequences' becomes 'lines' (I can't justify this - if you can you should give a lot more credence to this answer).
'covered by' indicates putting letters inside.
'organs' becomes 'ears' (ear is a kind of organ).
'lines' inserted within 'ears' is 'EARLINESS'.
Can you help me to learn more?
(Other definitions for earliness that I've seen before include "Ere snails? (Anag)" , "being in good time" .)