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On top of a spell of bowling (4)

Ross

I believe the answer is:

over

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I believe this clue is a quadruple definition!!

'on' is the first definition.
(I've seen this in other clues)

'top' is the second definition.
(I've seen this before)

'of' acts as a link.

'a spell' is the third definition.
The definition and answer can be both related to time as well as being singular nouns.
Maybe you can see a link between them that I can't see?

'of' acts as a link.

'bowling' is the fourth definition.
(cricket term)

Can you help me to learn more?

(Other definitions for over that I've seen before include "Finished -- as a remainder" , "See 19" , "Finished like round of bowling in cricket" , "Finished-up -left" , "Finished like bowling session" .)

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