50% of capital invested in modest settlement (6)

I believe the answer is:

colony

I'm a little stuck... Click here to teach me more about this clue!

'settlement' is the definition.
(I know that settlement can be written as colony)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for colony that I've seen before include "New settlement abroad" , "Country controlled by another's settlers" , "Settler's territory" , "Beavers' group" , "Group of animals or plants living together" .)

I've seen this clue in The Independent.

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