Making contact with distributor for new piston (6)

I believe the answer is:

points

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'making contact with distributor' is the definition.
I can't judge whether this definition defines the answer.

'new piston' is the wordplay.
'new' indicates an anagram.
'piston' is an anagram of 'POINTS'.

'for' acts as a link.

Can you help me to learn more?

(Other definitions for points that I've seen before include "Indicates using finger" , "Decimal dots" , "Directions on compass" , "Tips" , "as setter does" .)

I've seen this clue in The Irish Times.

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