Moon son at home, work and heading to eatery (6)

'moon' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'son at home work and heading to eatery' is the wordplay.
'son' becomes 's' (genealogical abbreviation for son).
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'work' becomes 'op' (common abbreviation for 'opus').
'and' says to put letters next to each other.
'heading to' suggests taking the first letters (the head of the word).
The initial letter of 'eatery' is 'e'.
's'+'in'+'op'+'e'='SINOPE'

Can you help me to learn more?