I've returned to make an impression quite clear (7)
I believe the answer is:
evident
'quite clear' is the definition.
'evident' can be an answer for 'clear' (synonyms). I'm unsure of the 'quite' bit.
'i've returned to make an impression' is the wordplay.
'returned' says the letters should be written backwards.
'to make an impression' becomes 'dent' (I've seen this in another clue).
'ive' in reverse letter order is 'evi'.
'evi'+'dent'='EVIDENT'
Can you help me to learn more?
(Other definitions for evident that I've seen before include "Quite obvious, easy to see" , "Obvious - 1 across" , "Readily apparent" , "Comprehensible - manifest" , "Obvious, quite apparent" .)