Size of field for a medley race? (4)
I believe the answer is:
acre
'size of field' is the definition.
'acre' can be an answer for 'field' (I've seen this in another clue). I am unsure of the 'size of' bit.
'medley race?' is the wordplay.
'medley' is an anagram indicator.
'race' anagrammed gives 'ACRE'.
'for a' is the link.
Can you help me to learn more?
(Other definitions for acre that I've seen before include "Ancient city in Israel" , "stretch of land" , "Care about the land measure" , "A state of W Brazil" , "Care about this bit of land" .)