Crossword Genius

Sort of affairs a politician can get involved in (8)

Ross

I believe the answer is:

internal

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

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

'sort of affairs a politician can get involved' is the wordplay.
I cannot quite see how this works, but
'a' is present in the answer.
'involved' could be 'in' (to be involved in something is to be 'in' it) and 'in' is found in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for internal that I've seen before include "Inside the body" , "Located inward" , "Interior" , "In-house - private" , "Cause of engine power" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app