8 Across, Strayed late in ancient city, finding source of all clues initially (3,7)
12 Across, Pungent dish the utmost for customers, each needing large amount of water (6,3)
15 Across, Produce, in retirement, top class wooden animal (9)
16 Across, Poultry having time over start of Christmas to get fatter? (7)
Compiler - SCORPION
Many thanks