5“For three years he has pursued in London his useful and, I think I may add, his artistic calling; and not so much as a whisper of suspicion has been once aroused.”
- I suppose the action of "pursuing" started 3 years ago and still continues at the present moment YES but could it possibly mean that the 3-yr-long action happened somewhere in the past and forms a part of the present experience like in the sentence: I have been to Australia (once, several times)? NO. 'For three years' is the decider. When used with a present perfect construction, it can mean only 'up till the present moment'
Or is this interpretation cancelled by HAS AROUSED (period extends up to now) and WAS AROUSED would have to be used instead? Not exactly. If you used 'was aroused', you would be setting the arousal in the past. As the arousal presumably happened during the three-year period, you would need to have the past tense form of 'pursue'.