Discreet (7)
'discreet' is the definition.
(I know that discreet can be written as circumspect)
This is all the clue.
(Another definition for circumspect that I've seen is " Prudent, cautious".)
'discreet' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for tactful that I've seen before include "Sensitive to others on difficult issues" , "using diplomacy" , "Delicate" , "Polite" , "Showing sensitivity towards others" .)