Growling about argument (3)
I believe the answer is:
row
'argument' is the definition.
(to row is to argue)
'growling about' is the wordplay.
'about' indicates a hidden word (the clue goes around or about the answer).
'ROW' is hidden within 'growling'.
(Other definitions for row that I've seen before include "Propel boat by manual means" , "Use an oar" , "Fight in a queue?" , "Altercation" , "File" .)