Lacking will to reject place in fashionable gallery? (9)
I believe the answer is:
intestate
'lacking will' is the definition.
'reject place in fashionable gallery?' is the wordplay.
'reject' says the letters should be written in reverse.
'place' becomes 'set' ('set' can be a synonym of 'place'**).
'in' indicates putting letters inside.
'fashionable' becomes 'in' ('in' can be similar in meaning to 'fashionable').
'gallery?' becomes 'tate' (I've seen this before).
'set' in reverse letter order is 'tes'.
'in'+'tate'='intate'
'tes' put into 'intate' is 'INTESTATE'.
'to' is the link.
(Other definitions for intestate that I've seen before include "Not having planned to leave" , "not prepared to die" , "Not having written a will before death" , "Undecided about who should inherit" , "One without will" .)