Taximeter broken? It could lead to penalties! (5,4)

I believe the answer is:

extra time

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'it could lead to penalties' is the definition.
The definition suggests a singular noun which matches the answer.

'taximeter broken?' is the wordplay.
'broken?' is an anagram indicator.
'taximeter' with letters rearranged gives 'EXTRA TIME'.

Can you help me to learn more?

(Other definitions for extra time that I've seen before include "may lead to penalties" , "could lead to penalties?" , "Extension to match" , "play's extension" , "Additional period of play" .)

I've seen this clue in The Sun.

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