With tenderness (6)
I believe the answer is:
gently
'with tenderness' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for gently that I've seen before include "Softly, delicately" , "Not violently" , "'Softly, kindly (6)'" , "Lightly, mildly, softly" , "In a mild/kind manner" .)