Proudly claim son has been placed in sailing craft (5)
I believe the answer is:
boast
'proudly claim' is the definition.
'boast' can be an answer for 'claim' (thesaurus). I am not certain of the 'proudly' bit.
'son has been placed in sailing craft' is the wordplay.
I cannot quite see how this works, but
'son' could be 's' (genealogical abbreviation for son) and 's' is found in the answer.
'craft' could be 'boat' (boat is a kind of craft) and 'boat' is present in the leftover letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for boast that I've seen before include "Expression of excessive pride" , "Brag about - squash shot" , "shot off the side wall" , "Talk with excessive pride" , "Talk with self-pride" .)