They may be just (7)
I believe the answer is:
deserts
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">they may be just</span>' is the definition.<br/ ><span class="explanation-format__explanation">(as in a person's 'just deserts')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for deserts that I've seen before include "Wastes" , "Areas like the Sahara" , "Abandons, forsakes" , "barren areas" , "Appropriate rewards" .)