Cat's pa (3)
I believe the answer is:
tom
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cat's pa</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tom that I've seen before include "- Lehrer, US humorist" , "Man's name; male cat" , "Queen's mate" , "Pig-stealing piper's son" , "Boy running off with pig" .)