Swear at dog, tips of sausages eaten (5)
I believe the answer is:
curse
'swear at' is the definition.
(thesaurus)
'dog tips of sausages eaten' is the wordplay.
'dog' becomes 'cur' (cur is a kind of dog).
'tips of' indicates taking the first letters (I've seen 'tip of' mean this).
The initial letters of 'sausages eaten' is 'se'.
'cur'+'se'='CURSE'
(Other definitions for curse that I've seen before include "Blasphemy" , "Wish evil upon" , "Blaspheme; damn" , "Invocation of evil; swear" , "Utter obscenities" .)