Smart lad providing white meat (7)
I believe the answer is:
chicken
'white meat' is the definition.
'chicken' can be an answer for 'meat' (chicken is a kind of meat). I'm not certain of the 'white' bit.
'smart lad' is the wordplay.
'smart' becomes 'chic' (both can mean stylish).
'lad' becomes 'ken' (I can't explain this - if you can you should give a lot more credence to this answer).
'chic'+'ken'='CHICKEN'
'providing' acts as a link.
Can you help me to learn more?
(Other definitions for chicken that I've seen before include "(Yellow?) bird" , "Bird, coward (colloq.)" , "Cowardly (colloq.)" , "In check (anag.)" , "Pigeon-hearted" .)