Animal in a shopping centre served up (5)
I believe the answer is:
llama
'animal' is the definition.
(llamas are animals)
'a shopping centre served up' is the wordplay.
'shopping centre' becomes 'mall' (a mall is a large shopping complex).
'served up' says the letters should be written backwards (in a down clue, going upwards).
'a'+'mall'='amall'
'amall' backwards is 'LLAMA'.
'in' acts as a link.
(Other definitions for llama that I've seen before include "Woollen cloth" , "South-American cud-chewing animal" , "Pack carrier" , "Camel-like animal" , "Animal related to camels but smaller and lacking a hump" .)