Story of some Yanks joining the navy (4)
I believe the answer is:
yarn
'story' is the definition.
(synonyms)
'some yanks joining the navy' is the wordplay.
'some' becomes 'a'.
'yanks' becomes 'y' (this might be a standard abbreviation which I don't know about).
'joining' means one lot of letters go next to another.
'the navy' becomes 'RN' (abbreviation for Royal Navy).
'a' after 'y' is 'ya'.
'ya'+'rn'='YARN'
'of' is the link.
Can you help me to learn more?
(Other definitions for yarn that I've seen before include "Not fully credible story" , "Sham" , "Sailor's tale" , "Fabricated" , "which could unravel?" .)