Suffolk town known for trawling, not frequently right at the bottom (6)
I believe the answer is:
lowest
'at the bottom' is the definition.
(I've seen this in another clue)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for lowest that I've seen before include "Towels for the most humble" , "Nearest the ground" , "Least high" , "Furthest down" , "Given maximum reduction" .)