### Clue: Nothing wrong with you, having absorbed energy from plant (5)
### Answer: OXEYE 
 ### Explanation: Definition: plant
 O(letter representing 0/nothing) + X(letter to mark/indicate that a particular text, eg. a written answer, is wrong) **plus**(with) YE(an old-fashioned or poetic form of the pronoun "you") **containing**(having absorbed) E(symbol for "energy" in physics).