Dad versus one huge cat in park shelter (8)
I believe the answer is:
pavilion
'park shelter' is the definition.
(I've seen this before)
'dad versus one huge cat' is the wordplay.
'dad' becomes 'pa' (pa can mean someone's father).
'versus' becomes 'v'.
'one' becomes 'i' (Roman numeral).
'huge cat' becomes 'lion' (lion is a kind of cat. I am not sure about the 'huge' bit.).
'pa'+'v'+'i'+'lion'='PAVILION'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for pavilion that I've seen before include "Building for cricketers" , "From which you look out on square" , "Exhibition tent; sports building" , "Cricket ground clubhouse" , "summerhouse" .)