Former England cricket captain Cook, and that woman equestrian (7,6)

I believe the answer is:

heather knight

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'former england cricket captain cook and' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'woman equestrian' is the wordplay.
'woman' becomes 'Heather' (woman's name).
'equestrian' becomes 'knight' (I can't justify this - if you can you should believe this answer much more).
'heather'+'knight'='HEATHER KNIGHT'

'that' acts as a link.

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