Ulster Times introduced to man on board craft (8)
I believe the answer is:
knitting
'board craft' is the definition.
(craft done with a board)
'ulster times introduced to man' is the wordplay.
'ulster' becomes 'NI' (Northern Ireland).
'times' becomes 'tt' (an abbreviation for time written twice).
'introduced to' is an insertion indicator.
'man' becomes 'king' (man can mean a chess piece).
'ni'+'tt'='nitt'
'nitt' placed within 'king' is 'KNITTING'.
'on' is the link.
(Other definitions for knitting that I've seen before include "joining up" , "Working with wool and needles" , "Making wool garments" , "Method of making yarn into textile or fabric" , "Needle work" .)