1. A lie in over retiring gives appearance of relief (7) relievo? – (anagram lie +over gives type of relief art)
2. An academic term for neat orderly trees (9)- trimester? (academic session -anagram of trim+trees)
3. Like Rodin, Landseer, etc., Epstein was brought up embracing a haunting fear of N America (7) specter? (in clue reversed, with American spelling)
4. Facetiously teach English in Northern Ireland (5)-Larne? (In NI and “larn” is in Chambers as “facetiously teach” + E for English)
5. Briefly successful hit in Finland, at that time inspired pop? (5,2,3,3) flash in the pan? – hit lash in Fin (Finland) gives “f lash in”, at that time- “then” inspired (took in) pa (pop) – the pa n)