Touring Portugal on vacation, Rose was extravagant (8)
I believe the answer is:
splurged
'extravagant' is the definition.
The answer and definition are not the same part of speech. However, past participle verbs and adjectives occasionally mean the same thing.
'touring portugal on vacation rose' is the wordplay.
'touring' is an insertion indicator (touring can mean going round).
'on vacation' says to hollow out the word (remove centre letters) (after the inside letters have vacated the word).
'rose' becomes 'surged' (surging is a kind of rising).
'portugal' with its middle taken out is 'pl'.
'pl' placed within 'surged' is 'SPLURGED'.
'was' is the link.
Can you help me to learn more?
(Other definitions for splurged that I've seen before include "Spent money extravagantly" , "Was suddenly extravagant" .)