Damage Indian parliamentarian on radio (6)

I believe the answer is:

impair

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'damage' is the definition.
(impairing is a kind of damaging)

'indian parliamentarian on radio' is the wordplay.
'indian' becomes 'i' (this might be a standard abbreviation of which I'm unaware).
'parliamentarian' becomes 'mp'.
'on' means one lot of letters go next to another.
'radio' becomes 'air' (I've seen this before).
'i'+'mp'+'air'='IMPAIR'

Can you help me to learn more?

(Other definitions for impair that I've seen before include "Damage or handicap" , "Harm" , "'Mar, damage (6)'" , "Reduce" , "'Mar, spoil (6)'" .)

I've seen this clue in The Hindu.

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