"Fudge!" (4)
(Other definitions for rats that I've seen before include "(Hunts) rodents - expression of irritation" , "Snoopy's imprecation - vermin" , "Rodent pests" , "Oh no" , "First word of 'The 21 19'" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fudge</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for drat that I've seen before include "Mild expletive" , "that expresses annoyance" , "Bother" , "Exclamation of annoyance" , "Informal expression of annoyance" .)
(Other definitions for darn that I've seen before include "Mend with 17s - mild expletive" , "Repair with wool" , "Repair (sock)" , "Blow" , "Mend (e.g. socks)" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fudge</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that fudge can be written as falsify)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for falsify that I've seen before include "Alter in order to deceive" , "Counterfeit" , "Forge; misrepresent" , "Alter so as to mislead" , "Cook - distort" .)