Districts in which there's a reason not to get ahead? (5)

I believe the answer is:

areas

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

'districts in' is the definition.
'areas' can be an answer for 'districts' (I've seen this in another clue). I'm unsure of the 'in' bit.

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for areas that I've seen before include "Places" , "Zones" , "Geographical regions" , "Localities" , "Spaces covered by two-dimensional surfaces" .)

I've seen this clue in the Evening Standard.

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