Shelf on which a chap has a phone? (6)
I believe the answer is:
mantel
'shelf on which' is the definition.
'mantel' can be an answer for 'shelf' (mantel is a kind of shelf). I'm not sure about the remainder of the definition.
'a chap has a phone?' is the wordplay.
'a chap' becomes 'man' (chap can mean a man).
'has' is a charade indicator (letters next to each other).
'a phone?' becomes 'tel'.
'man'+'tel'='MANTEL'
Can you help me to learn more?
(Other definitions for mantel that I've seen before include "Hilary?" , "Shelf above a fireplace" , "prize-winning novelist" , "Lament over fireplace structure" , "Award-winning author" .)