Cliff face showing evidence of old damage (4)
I believe the answer is:
scar
This clue is a quadruple definition!!
'cliff' is the first definition.
(I've seen this before)
'face' is the second definition.
(thesaurus)
'showing' is a link.
'evidence of old' is the third definition.
'scar' can be an answer for 'evidence' (scar is a kind of evidence). I'm not sure about the 'of old' bit.
'damage' is the fourth definition.
(I know that scar is a more specific form of the action blemish)
Can you help me to learn more?
(Other definitions for scar that I've seen before include "Limestone cliff or outcrop" , "Visible mark of healing" , "Identifying mark" , "Fish" , "Permanently damage" .)