Still, it appears in many etchings (3)
I believe the answer is:
yet
'still' is the definition.
(yet can mean still or so far)
'in many etchings' is the wordplay.
'in' indicates the answer is hidden within the clue.
'YET' is hidden within 'many etchings'.
'it appears' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for yet that I've seen before include "'But, however (3)'" , "Still; nevertheless" , "Up till now" , "in spite of that" , "Though; still" .)