Unbeatable on new wicket that turns, covered loosely (8)

I believe the answer is:

bestrewn

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'covered loosely' is the definition.
The answer and definition can be both to do with contact as well as being past participle verbs.
Maybe you can see an association between them that I don't see?

'unbeatable on new wicket that turns' is the wordplay.
'unbeatable' becomes 'best' (I've seen this before).
'on' becomes 're' (regarding).
'new' becomes 'n' (abbreviation as in New Testament NT).
'wicket' becomes 'w'.
'that turns' shows that the letters should be reversed in order.
'n'+'w'='nw'
'nw' reversed gives 'wn'.
'best'+'re'+'wn'='BESTREWN'

Can you help me to learn more?

(Other definitions for bestrewn that I've seen before include "Broadcast" , "Cast haphazardly" .)

I've seen this clue in The Times.

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