Strike lightly (3)
I believe the answer is:
tap
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">strike lightly</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for tap that I've seen before include "Obtain money from" , "Somewhere to drink beer" , "Get money from, strike" , "It's faucet in the US" , "water supply" .)