Letters to acquire at cricket ground (9)
I believe the answer is:
landlords
'letters' is the definition.
(I've seen this before)
'acquire at cricket ground' is the wordplay.
'acquire' becomes 'land' (I've seen this before).
'at' says to put letters next to each other.
'cricket ground' becomes 'lords' (I've seen this before).
'land'+'lords'='LANDLORDS'
'to' acts as a link.
(Other definitions for landlords that I've seen before include "maybe posted locally?" , "People in pubs" , "letters" , "They lease out properties" .)