Husband in car say reversed to fill tank (6)
I believe the answer is:
charge
'fill tank' is the definition.
'charge' can be an answer for 'fill' (charging is a kind of filling). I'm unsure of the 'tank' bit.
'husband in car say reversed' is the wordplay.
'husband' becomes 'h'.
'in' indicates putting letters inside.
'say' becomes 'eg'.
'reversed' is a reversal indicator.
'eg' back-to-front is 'ge'.
'h' going inside 'car' is 'char'.
'char'+'ge'='CHARGE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for charge that I've seen before include "responsibility" , "Demand price; accuse" , "Fill; fee" , "15 - or required payment" , "offensive, > explosive > tax" .)