"Was mean with the colour the man held back" = stinted. I can see Tint (colour) and Ed (man) but that's not the whole clue.
"Models have time inside (7)" = P-S-E-S.
The 3rd letter (S) of the above clue comes from "Infinite but not much of a target" for which I've put 'endless'. Is that right? If so, can you explain the 'not much of a target' bit?
Many thanks.