shed light on

shed light on (http://definr.com/shed light on)

     v : make free from confusion or ambiguity; make clear: "Could
         you clarify these remarks?"; "Clear up the question of
         who is at fault" [syn: clarify, clear, clear up, crystallize,
          crystallise, crystalize, crystalise, {straighten
         out}, sort out, enlighten, illuminate, elucidate]
         [ant: confuse]