### Clue: State artist is 4's supplier (8)
### Answer: FLETCHER 
 ### Explanation: Definition: 4's supplier
  FL(abbrev. for US state Florida, used in postal codes) ETCHER(an artist making designs or pictures by etching metal, glass, etc. with acid)
Answer:  One who makes,a supplier of arrows for ARCHER(answer to 4A).  Also, Jessica Fletcher, amateur detective in American TV series, Murder She Wrote