Not so hard (8)
'not so hard' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tenderer that I've seen before include "person making offer" , "Rather sympathetic" , "I'm offering" , "Not as tough" , "Bidder" .)
'not so hard' is the definition.
('easy' can be the opposite of 'hard' so perhaps 'easier' is reasonable for 'not so hard')
This is the entire clue.
(Other definitions for easier that I've seen before include "More effortless" , "More comfortable or less difficult" , "Posing less difficulty" , "More facile" , "Less burdensome" .)