Fill in for old writer reading to one expecting to get lots of the sun? (10)
I believe the answer is:
subscriber
'one expecting to get lots of the sun?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'fill in for old writer reading' is the wordplay.
'fill in' becomes 'sub' (synonyms).
'for' is a charade indicator (letters next to each other).
'old writer' becomes 'scribe' (I've seen this before).
'reading' becomes 'r' (one of the traditional three R's of education).
'sub'+'scribe'+'r'='SUBSCRIBER'
'to' is the link.
Can you help me to learn more?
(Other definitions for subscriber that I've seen before include "underwriter?" , "One showing approval of idea" , "paid-up customer?" , "One on the telephone" .)