For starters, carrying of innumerable treasures during day results in armed robbery (7)
I believe the answer is:
dacoity
'armed robbery' is the definition.
'dacoity' can be an answer for 'robbery' (dacoity is a kind of robbery). I am unsure of the 'armed' bit.
'for starters carrying of innumerable treasures during day' is the wordplay.
'for starters' says to take the initial letters.
'during' means one lot of letters goes inside another.
The initial letters of 'carrying of innumerable treasures' is 'coit'.
'coit' placed within 'day' is 'DACOITY'.
'results in' acts as a link.
Can you help me to learn more?
(Another definition for dacoity that I've seen is " robbery with gang".)