South of Ireland is the area for a quick catch (7)
I believe the answer is:
fastnet
'south of ireland is the area' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'a quick catch' is the wordplay.
'a quick' becomes 'fast' (I've seen this before).
'catch' becomes 'net' (netting is a kind of catching).
'fast'+'net'='FASTNET'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for fastnet that I've seen before include "Rock off Co. Cork" , "A sea area; a yacht race" , "shipping forecast area" , "area next to Lundy" .)