Grand redhead with bottom on lawn (5)
I believe the answer is:
grass
'lawn' is the definition.
(I've seen this before)
'grand redhead with bottom' is the wordplay.
'grand' becomes 'g' ('G' can be a synonym of 'grand').
'redhead' becomes 'r' (the head/first letter of 'red').
'with' is a charade indicator (letters next to each other).
'bottom' becomes 'ass' ('ass' can be a synonym of 'bottom').
'g'+'r'+'ass'='GRASS'
'on' is the link.
(Other definitions for grass that I've seen before include "German author" , "Reefer's content" , "Weed" , "sing?" , "canary, say" .)