Artist and composer putting out article concerned with environment (2,5)
I believe the answer is:
el greco
'artist' is the definition.
(I've seen this before)
'composer putting out article concerned with environment' is the wordplay.
'composer' becomes 'elgar' (Edward Elgar).
'putting out' suggests deleting specific letters.
'article' becomes 'a' (English indefinite article).
'concerned with environment' becomes 'eco' (as in eco-friendly).
'elgar' with 'a' removed is 'elgr'.
'elgr'+'eco'='EL GRECO'
'and' is the link.
(Other definitions for el greco that I've seen before include "Sixteenth to seventeenth century Greek-born Spanish painter" , "Famous painter's nickname" , "Domenikos Theotokopoulos" , "Greek born Spanish painter" , "Spanish artist born in Crete" .)