Merciful or tolerant (7)
I believe the answer is:
lenient
I believe this is a double definition.
'merciful' is the first definition.
(synonyms)
'tolerant' is the second definition.
(synonyms)
(Other definitions for lenient that I've seen before include "Merciful or easygoing" , "Soft on the rules" , "Light" , "Tolerant, merciful" , "Easy, soft" .)