Minor poet's introduction, arranged earlier, entertaining public house (10)
I believe the answer is:
peripheral
'minor' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for peripheral that I've seen before include "Computer item" , "computing device?" , "not of major interest" , "Of minor importance" , "Marginal" .)