Advance across shifting sand in coastal site (5,3)

I believe the answer is:

lands end

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'coastal site' is the definition.
The definition suggests a singular noun which matches the answer.

'advance across shifting sand' is the wordplay.
'advance' becomes 'lend' (I've seen this before).
'across' indicates putting letters inside.
'shifting' is an anagram indicator.
'sand' anagrammed gives 'ands'.
'lend' placed around 'ands' is 'LANDS END'.

'in' is the link.

Can you help me to learn more?

(Other definitions for lands end that I've seen before include "head in Cornwall - with 8d" , "next stop America?" , "western extremity" , "Most southerly point of England" , "Westernmost tip of Cornwall" .)

I've seen this clue in The Times.

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