Song about a sailor overseas (6)
I believe the answer is:
arabia
'song about a sailor overseas' is the definition.
I can't tell whether this definition defines the answer.
'song about a sailor' is the wordplay.
'song' becomes 'aria' (aria is a kind of song).
'about' is an insertion indicator.
'a sailor' becomes 'ab' (abbreviation for able seaman).
'aria' placed around 'ab' is 'ARABIA'.
Can you help me to learn more?
(Other definitions for arabia that I've seen before include "Area between Red Sea and Persian Gulf" , "Southwest Asian peninsula" , "TE Lawrence's milieu?" , "Peninsula between Red Sea and Persian Gulf" , "Middle East region" .)