If possible, attend to some animal sound (5)
I believe the answer is:
bleat
'animal sound' is the definition.
'bleat' can be an answer for 'sound' (bleat is a kind of sound). I'm unsure of the 'animal' bit.
'if possible attend to some' is the wordplay.
'to some' indicates a hidden word.
'BLEAT' is hidden within 'if possible attend'.
Can you help me to learn more?
(Other definitions for bleat that I've seen before include "Say baa!" , "Cry (like a sheep?)" , "Sound made by goat" , "Whine" , "Make complaint" .)