City sojourn, son packed gear (7)
I believe the answer is:
ecstasy
'gear' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'city sojourn son packed' is the wordplay.
'city' becomes 'EC' (the City of London postcode).
'sojourn' becomes 'stay' (I've seen this before).
'son' becomes 's' (genealogical abbreviation for son).
'packed' is an insertion indicator (some letters are packed into others).
'stay' going around 's' is 'stasy'.
'ec'+'stasy'='ECSTASY'
Can you help me to learn more?
(Other definitions for ecstasy that I've seen before include "Euphoria, delight" , "Drug; religious frenzy" , "Intense happiness" , "Great pleasure" , "State of euphoria and drug that induces it" .)