Nabs (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nabs</span>' is the definition.<br/ ><span class="explanation-format__explanation">('arrest' can be a synonym of 'nab')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for arrests that I've seen before include "Apprehends" , "Stops and takes into custody" , "Checks" , "made by police" , "has a heart attack" .)
(Other definitions for catches that I've seen before include "Hidden drawbacks" , "Snags; door-fastenings" , "Drawbacks, difficulties not readily evident" .)