Suggestion from Ullman briefly? (5)
I believe the answer is:
trace
'suggestion' is the definition.
(synonyms)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for trace that I've seen before include "Minute quantity" , "Discover - modicum" , "Follow to source" , "a piece of harness" , "Small quantity; find" .)