Trump holds course with extreme latitude (8)
I believe the answer is:
broadest
'trump holds course with extreme latitude' is the definition.
I can't judge whether this defines the answer.
'trump holds course with' is the wordplay.
'trump' becomes 'best' (synonyms).
'holds' means one lot of letters goes inside another.
'course with' becomes 'road' (I've seen this in another clue. I am not sure about the 'with' bit.).
'best' going around 'road' is 'BROADEST'.
Can you help me to learn more?
(Other definitions for broadest that I've seen before include "Most general, extensive" , "Most unspecific" , "Widest" .)