Body of seamen lifted vehicle with Yankee (4)
I believe the answer is:
navy
'body of seamen' is the definition.
'Navy' can be an answer for 'seamen'. I am not certain of the 'body of' bit.
'lifted vehicle with yankee' is the wordplay.
'lifted' is a reversal indicator (going up in down clue).
'vehicle' becomes 'van' (van is a kind of vehicle).
'with' means one lot of letters go next to another.
'yankee' becomes 'Y' (phonetic alphabet: alpha, bravo, charlie etc.).
'van' written backwards gives 'nav'.
'nav'+'y'='NAVY'
Can you help me to learn more?
(Other definitions for navy that I've seen before include "Armed force" , "Fleet of ships" , "Colour; fighting force" , "Marine force" , "Ships-of-war" .)