Gasp that Patrick's out for a bit of fun! (4)
I believe the answer is:
pant
'gasp' is the definition.
(I know that gasp can be written as pant)
'patrick's out for a bit of fun' is the wordplay.
'patrick' becomes 'pat' (common short form of the name).
'out' means to remove the last letter.
'for' says to put letters next to each other.
'a bit of fun' becomes 'nt' (I can't justify this - if you can you should believe this answer much more).
'pat' with its last letter taken away is 'pa'.
'pa'+'nt'='PANT'
'that' acts as a link.
Can you help me to learn more?
(Other definitions for pant that I've seen before include "Long" , "Gasp for breath (like a hot dog?)" , "Breathe noisily after running" , "Struggle for breath" , "Breathe heavily" .)