Ruffled father gets mad on losing lead (6)
I believe the answer is:
frilly
'ruffled' is the definition.
(synonyms)
'father gets mad on losing lead' is the wordplay.
'father' becomes 'fr'.
'gets' says to put letters next to each other.
'mad' becomes 'silly'.
'on losing lead' means to remove the first letter (the letter which leads the word is removed).
'silly' with its first letter taken off is 'illy'.
'fr'+'illy'='FRILLY'
(Other definitions for frilly that I've seen before include "ruffled" , "Having flounces, ruffles, etc" , "Fancy" .)