Direct system for putting people in debt (6)

I believe the answer is:

credit

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

'debt' is the definition.
(I know that credit is a type of loan)

'direct system for putting people' is the wordplay.
'direct' can be anagrammed to 'CREDIT'.
Though, I am not sure how this is indicated.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for credit that I've seen before include "Money available for borrowing" , "Positive bank balance" , "Reputation (for solvency)" , "Belief; tick" , "Acknowledgment, recognition or praise" .)

I've seen this clue in the Evening Standard.

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