In fencing an area (5)
I believe the answer is:
piste
This clue could be a double definition.
'in fencing' is the first definition.
The definition suggests a singular noun which matches the answer.
'an area' is the second definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for piste that I've seen before include "Ski-slope" , "slippery slope" , "strip of fencing" , "A ski run of compacted snow" , "Ski slope" .)