Robbery also tackled by prison time (10)

'robbery' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?

'also tackled by prison time' is the wordplay.
'also' becomes 'and' (both can mean in addition).
'tackled' means one lot of letters goes inside another.
'by' is a charade indicator (letters next to each other).
'prison' becomes 'brig' (I've seen this before).
'time' becomes 'age' (an age is a period of time).
'brig' put next to 'age' is 'brigage'.
'and' inserted into 'brigage' is 'BRIGANDAGE'.

Can you help me to learn more?