Number of letters not known .... clues alphabetical...jigsaw type puzzle
The wordplay in some answers is several letters short (may be up to a string of 5 letters missing from the wordplay)
1.Revere painter perhaps with work in cold open country .....starts with C
2. ... monster drink following Euro trophy's final ...starts E F or G
3. Insubstantial entry won ...starts I J K L or M
4. Briefly, the dead always like particular sect? starts R or S