Thanks hotel after endless comfort for animal (7)
I believe the answer is:
cheetah
'animal' is the definition.
(thesaurus)
'thanks hotel after endless comfort' is the wordplay.
'thanks' becomes 'ta' (UK informal version of 'thank you').
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'after' says to put letters next to each other.
'endless' means to remove the last letter.
'comfort' becomes 'cheer' (I've seen this before).
'cheer' with its last letter removed is 'chee'.
'ta'+'h'='tah'
'tah' after 'chee' is 'CHEETAH'.
'for' acts as a link.
(Other definitions for cheetah that I've seen before include "fast runner" , "Swift large wild cat with spotted coat" , "Swift African cat" , "Swift-running cat" , "spotted in Africa" .)