Snail sent by daughter to Australia, say (6)
I believe the answer is:
island
'australia say' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'snail sent by daughter' is the wordplay.
'sent' indicates anagramming the letters (send can mean to excite or stimulate).
'by' is a charade indicator (letters next to each other).
'daughter' becomes 'd' (genealogical abbreviation).
'snail' with letters rearranged gives 'islan'.
'islan'+'d'='ISLAND'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for island that I've seen before include "See 14" , "Place surrounded by water" , "See 1" , "Ground surrounded by water" , "Man perhaps" .)