Settled practice (5)
I believe the answer is:
habit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">settled practice</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for habit that I've seen before include "Settled tendency" , "Custom; riding dress" , "Riding garment" , "Monk's robe or repetitive action" , "Addiction to a drug" .)