Wild goat made one bloke disheartened and cross (4)
I believe the answer is:
ibex
'wild goat' is the definition.
(I know that ibex is a type of wild goat)
'one bloke disheartened and cross' is the wordplay.
'one' becomes 'i' (Roman numeral).
'disheartened' says to hollow out the word (remove centre letters) (the middle or heart is removed).
'and' means one lot of letters go next to another.
'cross' becomes 'x' (X is cross-shaped).
'bloke' with its middle taken out is 'be'.
'i'+'be'+'x'='IBEX'
'made' is the link.
(Other definitions for ibex that I've seen before include "Large-horned mountain goat" , "Wild mountain goat" , "being nimble-footed" , "Mountain animal" , "Wild goat of North Africa" .)