Starry-eyed minor act in play (8)
I believe the answer is:
romantic
'starry-eyed' is the definition.
(I've seen this in another clue)
'minor act in play' is the wordplay.
'in play' indicates anagramming the letters (letters play around).
'minor'+'act'='minoract'
'minoract' anagrammed gives 'ROMANTIC'.
(Other definitions for romantic that I've seen before include "Soulful or amorous idealist" , "Coin mart (anag.)" , "Involving a love affair, appealing to the tender emotions" , "Relating to love" , "Amorous, showing loving feeling" .)