Touch up with pine tar solution (7)
I believe the answer is:
repaint
'touch up' is the definition.
(I've seen this in another clue)
'pine tar solution' is the wordplay.
'pine tar' can be anagrammed to 'REPAINT'.
Though, I am not clear how the anagram is indicated.
'with' is the link.
Can you help me to learn more?
(Other definitions for repaint that I've seen before include "To provide fresh cover" , "put on another coat" , "put on new coat" .)