Split for one opening finally concealed in chair? (7)
I believe the answer is:
seaport
'finally concealed in chair?' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'split for one opening' is the wordplay.
'split' becomes 's' (this might be a standard abbreviation which I don't know about).
'for one' becomes 'ea' ('ea' is an abbreviation for each ie 'for one').
'opening' becomes 'port' (port can mean a gap or opening).
's'+'ea'+'port'='SEAPORT'
Can you help me to learn more?
(Other definitions for seaport that I've seen before include "Place with harbour for ocean-going ships" , "place on the coast" , "Town with deep-water harbour" , "Esparto (anag)" , "Sydney perhaps" .)