Meet with sailors, for example, at rear of port, welcomed by Rear Admiral (7)
I believe the answer is:
regatta
'meet' is the definition.
(regatta is a kind of meet)
'example at rear of port welcomed by rear admiral' is the wordplay.
'example' becomes 'eg'.
'rear of' suggests the final letters.
'welcomed by' is an insertion indicator (I've seen this in other clues).
'rear admiral' becomes 'ra' (this could be a standard abbreviation I've not previously seen).
The final letter of 'port' is 't'.
'eg'+'at'+'t'='egatt'
'egatt' put inside 'ra' is 'REGATTA'.
'with sailors for' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for regatta that I've seen before include "Yachting or rowing event" , "Sailing races" , "Meeting at Dartmouth, perhaps" , "competition between banks" , "Boat racing event" .)