Time with eg Rishi, wild and ferocious (8)

I believe the answer is:

tigerish

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'ferocious' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

'time with eg rishi wild' is the wordplay.
'time' becomes 't' (abbreviation).
'with' is a charade indicator (letters next to each other).
'wild' indicates anagramming the letters.
'eg'+'rishi'='egrishi'
'egrishi' is an anagram of 'igerish'.
't'+'igerish'='TIGERISH'

'and' is the link.

Can you help me to learn more?

(Other definitions for tigerish that I've seen before include "Fierce" , "feistiness" .)

I've seen this clue in The Times.

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