Sounds like Dad means to be more distant (7)

I believe the answer is:

farther

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

'more distant' is the definition.
(more far away)

I don't understand the rest of the clue.

(Other definitions for farther that I've seen before include "Beyond; her raft (anag)" , "More distant" , "longer" , "Over a greater distance" .)

I've seen this clue in The Globe and Mail.

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