Giving the go-ahead (8)
I believe the answer is:
allowing
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">giving the go-ahead</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 allowing that I've seen before include "Permitting or conceding" , "not stopping" , "Granting, permitting" , "Admitting" , "Giving permission" .)