Plant letting gents in shifts (8,6)
I believe the answer is:
stinging nettle
'plant' is the definition.
The answer is an example.
'letting gents in shifts' is the wordplay.
'shifts' indicates anagramming the letters.
'letting'+'gents'+'in'='lettinggentsin'
'lettinggentsin' anagrammed gives 'STINGING NETTLE'.
(Other definitions for stinging nettle that I've seen before include "Common weed" , "Plant (Urtica)" , "Common plant" .)