Desire lovely topping? I offer doughnut (6)
I believe the answer is:
libido
'desire' is the definition.
(I know that libido is a type of desire)
'lovely topping? i offer doughnut' is the wordplay.
'lovely' becomes 'l' (this could be a standard abbreviation of which I'm unaware).
'topping?' is a charade indicator (letters next to each other).
'offer' becomes 'bid' (bid is a kind of offer).
'doughnut' becomes 'o' (letter resembling a doughnut).
'l'+'i'+'bid'+'o'='LIBIDO'
Can you help me to learn more?
(Other definitions for libido that I've seen before include "I'd boil over with sexual energy" , "Instinctive desire" , "Life force" , "Sexual impulse" , "Psychic, sexual, energy" .)