Shirt-maker hasn't got this to declare
I believe the answer is:
remark
'this to declare' is the definition.
(thesaurus)
'shirt-maker hasn't' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'maker' is 'emark' which is present in the answer.
A single letter 'r' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
'got' is the link.
Can you help me to learn more?
(Other definitions for remark that I've seen before include "what someone says?" , "Comment, observation" , "Make mention of" , "Notice; happen to say" , "(E.g. Virgil's) pastoral poems" .)