Time with eg Rishi, wild and ferocious (8)

I believe the answer is:

tigerish

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'ferocious' is the definition.
Both the definition and answer are adjectives. Maybe there's a link between them I don't understand?

'time with eg rishi wild' is the wordplay.
'time' becomes 't' (abbreviation).
'with' means one lot of letters go next to another.
'wild' indicates anagramming the letters.
'eg'+'rishi'='egrishi'
'egrishi' anagrammed gives 'igerish'.
't'+'igerish'='TIGERISH'

'and' acts as a 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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