Drove back from Holland (4)
I believe the answer is:
edam
'holland' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'drove back from' is the wordplay.
'drove' becomes 'eda' (I am not sure about this - if you are sure you should believe this answer much more).
'back' indicates one should take the final letters (I've seen 'back of' mean this).
The last letter of 'from' is 'm'.
'eda'+'m'='EDAM'
Can you help me to learn more?
(Other definitions for edam that I've seen before include "town in Holland" , "Type of cheese" , "Made into a nice cheese" , "Yellow cheese with a red covering" , "Dutch 8 across" .)