Still reduced quantity of light around yard on a regular basis (8)
I believe the answer is:
everyday
'still reduced quantity of light' is the definition.
I can't judge whether this definition defines the answer.
'around yard on a regular basis' is the wordplay.
'around' is an anagram indicator.
'on' is an insertion indicator.
'a regular basis' becomes 'evey' (I can't justify this - if you can you should give a lot more credence to this answer).
'yard' anagrammed gives 'ryda'.
'ryda' inserted within 'evey' is 'EVERYDAY'.
Can you help me to learn more?
(Other definitions for everyday that I've seen before include "familiar" , "Ordinary, for regular use" , "Common or usual" , "Mundane, ordinary" , "Run-of-the-mill" .)