Crossword Genius

Doctor fuels you, say, to become productive (6)

Ross

I believe the answer is:

useful

'productive' is the definition.
(thesaurus)

'doctor fuels you say' is the wordplay.
'doctor' indicates anagramming the letters.
'say' shows a homophone (sound like).
'you' sounds like 'u'.
'fuels'+'u'='fuelsu'
'fuelsu' is an anagram of 'USEFUL'.

'to become' is the link.

(Other definitions for useful that I've seen before include "Handy, practical" , "Functional and worthwhile" , "Suitable for practical purpose" , "Handy, serviceable" , "Handy; very able" .)

I've seen this clue in The Hindu.
Want a hint initially instead of a full solution? Install my app