Courage is lacking in this mug, lovely chap? (10)
I believe the answer is:
heartthrob
'lovely chap?' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'courage is lacking in this mug' is the wordplay.
'courage' becomes 'heart' (heart is a kind of courage).
'lacking in' suggests deleting specific letters.
'mug' becomes 'rob' (to mug someone is to rob them).
'this' with 'is' taken out is 'th'.
'heart'+'th'+'rob'='HEARTTHROB'
Can you help me to learn more?
(Other definitions for heartthrob that I've seen before include "Beat" , "Object of fascination" , "idol" , "Romantic and good-looking male celebrity" .)