Poet Stephen, welcome shop customer? (7)
I believe the answer is:
spender
This clue might be a double definition.
'poet stephen' is the first definition.
(I've seen this in another clue)
'welcome shop customer?' is the second definition.
'spender' can be an answer for 'customer?' (spender is a kind of customer). I am not certain of the 'welcome shop' bit.
Can you help me to learn more?
(Other definitions for spender that I've seen before include "writer of poetry" , "One paying out money" , "Sir Stephen -, English twentieth century poet" , "One using money" , "patronising retailers, perhaps?" .)