Pleasant home is unfortunately flooded by river (7)

I believe the answer is:

moreish

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'pleasant' is the definition.
Both the answer and definition are adjectives.
Perhaps there's an association between them I don't understand?

'home is unfortunately flooded by river' is the wordplay.
'home' becomes 'H' (abbreviation as used in sports fixtures).
'unfortunately' indicates anagramming the letters (a bad or unfortunate spelling).
'flooded by' is an insertion indicator (inserted letters flood into others).
'river' becomes 'more' (I am not sure about this - if you are sure you should believe this answer much more).
'h'+'is'='his'
'his' with letters rearranged gives 'ish'.
'ish' placed around 'more' is 'MOREISH'.

Can you help me to learn more?

(Another definition for moreish that I've seen is " addictive".)

I've seen this clue in The Times.

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