Ducks seen regularly flying around part of a cruise ship (3,4)
I believe the answer is:
sun deck
'part of a cruise ship' is the definition.
'sun deck' can be an answer for 'part' (I have seen 'Part of ship' mean 'sun deck' so perhaps 'part' could also mean 'sun deck'). I'm not certain of the 'of a cruise ship' bit.
'ducks seen regularly flying' is the wordplay.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
'flying' is an anagram indicator.
The alternating letters of 'seen' are 'en'.
'ducks'+'en'='ducksen'
'ducksen' is an anagram of 'SUN DECK'.
'around' is the link.
Can you help me to learn more?
(Other definitions for sun deck that I've seen before include "Part of ship" , "Open area of cruise ship" , "Place on board to get tan" , "Outside area" , "Open area of liner" .)