Pottery expert bringing learner aboard (5)
I believe the answer is:
delft
'pottery' is the definition.
(I've seen this before)
'expert bringing learner aboard' is the wordplay.
'expert' becomes 'deft' (I've seen this in other clues).
'bringing learner' becomes 'l' (I can't explain this - if you can you should believe this answer much more).
'aboard' means one lot of letters goes inside another.
'deft' enclosing 'l' is 'DELFT'.
Can you help me to learn more?
(Other definitions for delft that I've seen before include "type of pottery" , "Dutch glazed ware" , "cups, etc" , "Blue and white earthenware (from Holland)" , "Dutch pottery town" .)