His two staff quit finally, being somewhat weak (4)

I believe the answer is:

soft

I'm a little stuck... Click here to teach me more about this clue!

'somewhat weak' is the definition.
'soft' can be an answer for 'weak' (similar in meaning). I am unsure of the 'somewhat' bit.

'his two staff quit finally' is the wordplay.
'finally' suggests the final letters.
The final letters of 'his two staff quit' are 'SOFT'.

'being' acts as a link.

Can you help me to learn more?

(Other definitions for soft that I've seen before include "Velvety" , "Seat" , "firm? On the contrary" , "Gentle; non-alcoholic" , "p. (mus.)" .)

I've seen this clue in The Irish Times.

Want a hint initially instead of a full solution? Install my app