Harry and Queen on stamp (6)
I believe the answer is:
badger
'harry' is the definition.
(both can mean to bother or harass)
'queen on stamp' is the wordplay.
I cannot quite understand how this works, but
'queen' could be 'er' (abbreviation for Elizabeth Regina) and 'er' is found within the answer.
This explanation may well be incorrect...
'and' acts as a link.
Can you help me to learn more?
(Other definitions for badger that I've seen before include "Black and white burrower" , "One of the weasel family" , "Annoy the burrower persistently" , "Countryside mammal" , "Animal at home in a sett" .)