Shine like the seafood in Yorkshire? (7)
I believe the answer is:
twinkle
'shine' is the definition.
(to twinkle is to shine or glint)
'the seafood in yorkshire?' is the wordplay.
I cannot quite understand how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
'seafood' could be 'winkle' (winkle is a kind of seafood) and 'winkle' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
'like' acts as a link.
(Other definitions for twinkle that I've seen before include "Sparkle intermittently" , "Shine with a bright flickering light" , "What a star or an eye might do" , "Instant" , "behave like a star?" .)