Scarcity of high earners close to Leeds (8)
I believe the answer is:
rareness
'scarcity' is the definition.
(I know that rareness is a type of scarcity)
'high earners close to leeds' is the wordplay.
'high' indicates an anagram (like drunk).
'close to' suggests the final letters (the close of something is the end).
The final letter of 'leeds' is 's'.
'earners' anagrammed gives 'rarenes'.
'rarenes'+'s'='RARENESS'
'of' acts as a link.
(Other definitions for rareness that I've seen before include "Scarcity" , "Unusual quality" , "Uncommon quality" , "State of being uncommon or very scarce" .)