Ropes seen on a football field (6)

I believe the answer is:

tackle

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'field' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps you can see an association between them that I don't see?

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for tackle that I've seen before include "man's genitals" , "Get to grips with" , "Set about dealing with" , "Confront" , "Deal with; equipment" .)

I've seen this clue in The Globe and Mail.

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