Returns and is at home before you arrive (6)
I believe the answer is:
income
'returns' is the definition.
(I've seen this before)
'is at home before you arrive' is the wordplay.
I cannot quite see how this works, but
'at' could be 'in' (synonymous in some cases - eg at school, in school) and 'in' is present in the answer.
'arrive' could be 'come' (synonyms) and 'come' is present in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'and' acts as a link.
Can you help me to learn more?
(Other definitions for income that I've seen before include "Money earned" , "Money gained from work or investment" , "Money received on which tax is payable" , "Money from investments or for work" , "Financial gain accruing over a given period of time" .)